November 2007 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] ALSA API as standards
by Takashi Iwai 30 Nov '07

30 Nov '07

Hi, I've talked with some people workiong on LSB about the possibility to put libasound as a part of the next LSB (surprisingly, they would like it more than I). I proposed that we should define the minimal set at first as the standard instead of taking all existing API functions. An interesting input was that they did some statistics and counted the actual used functions/variables in ALSA API over distros. The data is attached below. I just put the number of apps and functions there to simplify. (It includes __* functions that are actaully internal ones, and I'm wondering why their numbers are so high. Anyway, they shouldn't be a part of standard.) So, first, just take a look at it. You'll see how many functions are not actually used at all. What I'd like to do now are: - create a list of "standard" functions to be passed to LSB - clean up and actually drop some non-used functions - remove some functions from export list (in Versions file) I'll try to create a list. Basically it'll be almost as same as the list of functions with count > 0, plus some related ones. Then, let's discuss and clean up... BTW, regarding Versions. The versioned symbols for newly added functions seem not set properly as expected. We have entries ALSA_0.9 { global: __snd_*; _snd_*; snd_*; local: *; }; and thus the rest functions after this all belong to ALSA_0.9 in the end (except for functions explicitly defined with obsolete macros in pcm.c). It means, we'll need to stick with ALSA_0.9 tag no matter which version is added. Only if the function API is changed and double definitions are needed, we'll tag to another version... Oh well. Takashi AppUsage Iname 36 snd_pcm_hw_params_set_format 36 snd_pcm_hw_params_set_access 36 snd_pcm_hw_params_any 36 snd_pcm_open 36 snd_pcm_hw_params 36 snd_pcm_prepare 35 snd_strerror 35 snd_pcm_close 35 snd_pcm_writei 34 snd_pcm_hw_params_set_channels 29 snd_pcm_sw_params_current 28 snd_pcm_sw_params 28 snd_pcm_sw_params_set_start_threshold 27 snd_pcm_readi 25 snd_pcm_drop 24 snd_pcm_avail_update 23 snd_pcm_state 23 snd_pcm_resume 22 snd_ctl_open 22 snd_ctl_close 22 snd_card_next 22 snd_pcm_sw_params_set_avail_min 22 snd_pcm_start 21 snd_ctl_pcm_next_device 21 snd_pcm_hw_params_malloc 20 snd_pcm_hw_params_free 20 snd_pcm_nonblock 19 snd_pcm_pause 19 snd_pcm_info_set_stream 19 snd_ctl_pcm_info 19 snd_pcm_info_get_name 19 snd_pcm_status 19 snd_pcm_info_set_device 18 snd_pcm_hw_params_set_rate_near 18 snd_pcm_sw_params_set_xfer_align 18 snd_pcm_info_set_subdevice 17 snd_ctl_card_info_get_name 17 snd_ctl_card_info 17 snd_pcm_hw_params_sizeof 16 snd_pcm_hw_params_get_format_mask 16 snd_pcm_status_get_avail 16 snd_pcm_hw_params_set_period_size_near 16 snd_pcm_format_physical_width 16 snd_lib_error_set_handler 16 snd_pcm_format_mask_test 15 snd_pcm_sw_params_free 15 snd_pcm_info_free 15 snd_ctl_card_info_get_id 15 snd_pcm_sw_params_malloc 15 snd_pcm_info_malloc 14 snd_pcm_format_mask_malloc 14 snd_pcm_sw_params_sizeof 14 snd_seq_set_client_name 14 snd_seq_open 14 snd_pcm_format_mask_free 13 snd_pcm_format_width 13 snd_pcm_format_big_endian 13 snd_pcm_format_linear 13 snd_pcm_build_linear_format 13 snd_ctl_card_info_free 13 snd_pcm_info_get_id 13 snd_seq_create_simple_port 13 snd_seq_close 13 snd_ctl_card_info_malloc 13 snd_pcm_status_free 13 snd_pcm_format_signed 13 snd_pcm_info_get_subdevices_count 13 snd_pcm_status_malloc 13 __snd_pcm_hw_params_set_tick_time_last 13 __snd_pcm_hw_params_get_period_time 13 __snd_pcm_hw_params_get_periods 13 __snd_pcm_hw_params_set_access_last 13 __snd_pcm_hw_params_set_buffer_size_near 13 __snd_pcm_hw_params_get_periods_max 13 __snd_pcm_hw_params_get_period_size_min 13 __snd_pcm_hw_params_set_format_last 13 __snd_pcm_hw_params_set_period_time_first 13 __snd_pcm_hw_params_set_period_time_last 13 __snd_pcm_hw_params_set_channels_last 13 __snd_pcm_hw_params_get_tick_time_min 13 __snd_pcm_hw_params_set_buffer_size_first 13 __snd_pcm_hw_params_get_period_time_max 13 __snd_pcm_hw_params_get_tick_time_max 13 __snd_pcm_hw_params_get_rate 13 __snd_pcm_hw_params_get_subformat 13 __snd_pcm_hw_params_get_tick_time 13 __snd_pcm_hw_params_get_rate_max 13 __snd_pcm_hw_params_get_period_size 13 __snd_pcm_hw_params_set_periods_first 13 __snd_pcm_hw_params_get_access 13 __snd_pcm_hw_params_set_rate_near 13 __snd_pcm_hw_params_set_buffer_size_last 13 __snd_pcm_hw_params_set_tick_time_first 13 __snd_pcm_hw_params_get_periods_min 13 __snd_pcm_hw_params_get_rate_min 13 __snd_pcm_hw_params_set_channels_first 13 __snd_pcm_hw_params_get_channels_max 13 __snd_pcm_hw_params_get_buffer_time_min 13 __snd_pcm_hw_params_get_period_size_max 13 __snd_pcm_hw_params_get_channels_min 13 __snd_pcm_hw_params_get_buffer_time_max 13 __snd_pcm_hw_params_get_buffer_size_max 13 __snd_pcm_hw_params_get_buffer_size 13 __snd_pcm_hw_params_get_buffer_time 13 __snd_pcm_hw_params_get_period_time_min 13 __snd_pcm_hw_params_set_format_first 13 __snd_pcm_hw_params_set_period_size_first 13 __snd_pcm_hw_params_get_channels 13 __snd_pcm_hw_params_set_rate_last 13 __snd_pcm_hw_params_get_format 13 __snd_pcm_hw_params_set_buffer_time_near 13 __snd_pcm_hw_params_get_buffer_size_min 13 __snd_pcm_hw_params_set_channels_near 13 __snd_pcm_hw_params_set_subformat_last 13 __snd_pcm_hw_params_set_subformat_first 13 __snd_pcm_hw_params_set_rate_first 13 __snd_pcm_hw_params_set_period_size_last 13 __snd_pcm_hw_params_set_period_size_near 13 __snd_pcm_hw_params_set_period_time_near 13 __snd_pcm_hw_params_set_tick_time_near 13 __snd_pcm_hw_params_set_periods_near 13 __snd_pcm_hw_params_set_buffer_time_last 13 __snd_pcm_hw_params_set_periods_last 13 __snd_pcm_hw_params_set_buffer_time_first 11 snd_seq_event_input 11 snd_pcm_drain 11 snd_pcm_hw_params_get_buffer_size 10 snd_mixer_selem_get_playback_volume 10 snd_mixer_selem_register 10 snd_mixer_attach 10 snd_mixer_selem_get_playback_volume_range 10 snd_pcm_hw_params_set_periods_near 10 snd_pcm_hw_params_get_period_size 10 snd_mixer_open 10 snd_mixer_load 10 snd_mixer_close 9 snd_mixer_elem_next 9 snd_mixer_selem_has_playback_volume 9 snd_pcm_delay 9 snd_rawmidi_read 9 snd_seq_client_id 9 snd_rawmidi_close 9 snd_mixer_selem_has_playback_switch 9 snd_midi_event_new 9 snd_mixer_first_elem 9 snd_rawmidi_open 8 snd_pcm_hw_params_get_rate 8 snd_seq_poll_descriptors 8 snd_mixer_selem_set_playback_switch_all 8 snd_mixer_selem_get_name 8 snd_mixer_selem_get_capture_volume 8 snd_rawmidi_write 8 snd_mixer_selem_set_playback_volume 8 snd_seq_port_info_sizeof 8 snd_mixer_selem_has_capture_volume 8 snd_mixer_selem_has_capture_switch 8 snd_midi_event_free 8 snd_mixer_selem_set_capture_switch_all 8 snd_rawmidi_nonblock 7 snd_rawmidi_info_free 7 snd_seq_client_info_sizeof 7 snd_pcm_sw_params_set_silence_size 7 snd_rawmidi_info_malloc 7 snd_ctl_rawmidi_info 7 snd_rawmidi_info_get_name 7 snd_midi_event_encode_byte 7 snd_ctl_rawmidi_next_device 7 snd_rawmidi_info_set_device 7 snd_seq_port_info_set_port 7 snd_rawmidi_info_set_stream 7 snd_pcm_hw_params_set_buffer_size_near 7 snd_rawmidi_info_set_subdevice 7 snd_rawmidi_info_get_id 7 snd_rawmidi_info_get_subdevices_count 7 snd_mixer_selem_get_capture_volume_range 7 snd_mixer_selem_is_playback_mono 7 snd_pcm_sw_params_set_stop_threshold 7 snd_pcm_hw_params_can_pause 6 snd_ctl_card_info_get_mixername 6 snd_seq_free_event 6 snd_pcm_hw_params_set_buffer_time_near 6 snd_pcm_hw_params_get_channels_max 6 snd_seq_poll_descriptors_count 6 snd_mixer_selem_get_capture_switch 6 snd_pcm_sw_params_set_silence_threshold 6 snd_mixer_selem_has_playback_channel 6 snd_pcm_status_sizeof 6 snd_pcm_hw_params_set_period_time_near 6 snd_mixer_selem_set_capture_volume 6 snd_config_search 6 snd_mixer_selem_channel_name 6 snd_seq_query_next_port 6 snd_pcm_info_sizeof 6 snd_pcm_hw_params_get_channels_min 6 snd_pcm_hw_params_set_rate 6 snd_mixer_selem_get_playback_switch 6 snd_mixer_selem_is_capture_mono 6 snd_seq_port_info_set_client 6 snd_mixer_selem_is_active 6 snd_mixer_selem_has_capture_channel 6 snd_pcm_hw_params_test_format 6 snd_config_update 5 snd_seq_port_subscribe_set_sender 5 snd_seq_port_subscribe_set_dest 5 snd_config_iterator_end 5 snd_config_iterator_next 5 snd_seq_port_info_get_name 5 snd_seq_port_info_get_capability 5 snd_config_iterator_first 5 snd_seq_connect_to 5 snd_pcm_hw_params_get_channels 5 snd_pcm_hw_params_get_buffer_size_min 5 snd_seq_subscribe_port 5 snd_pcm_hw_params_get_period_size_min 5 snd_seq_port_info_get_addr 5 snd_seq_event_input_pending 5 snd_seq_query_next_client 5 snd_seq_event_output 5 snd_config_iterator_entry 5 snd_seq_client_info_get_client 5 snd_seq_drain_output 5 snd_seq_client_info_set_client 5 snd_config_get_string 5 snd_seq_port_info_get_port 4 snd_pcm_hw_params_get_buffer_size_max 4 snd_pcm_hw_params_get_rate_min 4 snd_pcm_bytes_to_frames 4 snd_ctl_card_info_sizeof 4 snd_pcm_hw_params_get_rate_max 4 snd_pcm_hw_params_can_resume 4 snd_card_get_name 4 snd_pcm_hw_params_get_period_size_max 4 snd_pcm_frames_to_bytes 4 snd_pcm_status_get_trigger_tstamp 4 snd_pcm_wait 3 snd_pcm_poll_descriptors 3 snd_pcm_hw_params_is_double 3 snd_pcm_hw_params_is_batch 3 snd_pcm_hw_params_get_tick_time 3 snd_pcm_hw_params_can_sync_start 3 snd_pcm_status_get_state 3 snd_seq_port_info_set_name 3 snd_pcm_hw_params_get_periods_max 3 snd_pcm_hw_params_get_period_time 3 snd_async_add_pcm_handler 3 snd_seq_port_subscribe_sizeof 3 snd_pcm_mmap_commit 3 snd_pcm_hw_params_test_rate 3 snd_pcm_hw_params_get_access 3 snd_pcm_hw_params_can_overrange 3 snd_pcm_writen 3 snd_pcm_hw_params_get_format 3 snd_pcm_hw_params_is_half_duplex 3 snd_seq_event_output_direct 3 snd_pcm_hw_params_is_joint_duplex 3 snd_seq_connect_from 3 snd_pcm_hw_params_get_buffer_time 3 snd_config_get_id 3 snd_seq_client_info_get_name 3 snd_pcm_mmap_begin 3 snd_seq_port_info_set_capability 3 snd_pcm_hw_params_can_mmap_sample_resolution 3 snd_pcm_poll_descriptors_count 3 snd_pcm_link 3 snd_config 3 snd_pcm_hw_params_get_periods 3 snd_pcm_hw_params_set_channels_near 3 snd_pcm_hw_params_test_access 3 snd_pcm_hw_params_is_block_transfer 3 snd_pcm_hw_params_set_rate_resample 2 snd_seq_disconnect_from 2 snd_config_get_type 2 snd_mixer_selem_id_sizeof 2 snd_pcm_hw_params_get_period_time_max 2 snd_pcm_poll_descriptors_revents 2 snd_seq_delete_simple_port 2 snd_pcm_access_mask_test 2 snd_ctl_elem_value_clear 2 snd_config_get_integer 2 snd_pcm_access_name 2 snd_seq_port_info_get_client 2 snd_ctl_elem_value_set_integer 2 snd_mixer_selem_id_get_name 2 snd_pcm_mmap_readi 2 snd_ctl_elem_info_is_readable 2 snd_hctl_close 2 snd_ctl_elem_info_malloc 2 snd_pcm_mmap_writei 2 snd_ctl_name 2 snd_hwdep_close 2 snd_hwdep_open 2 snd_hwdep_info 2 snd_pcm_hw_params_get_access_mask 2 snd_pcm_format_set_silence 2 snd_hctl_load 2 snd_hctl_find_elem 2 snd_hctl_free 2 snd_pcm_sw_params_set_tstamp_mode 2 snd_pcm_hw_params_get_periods_min 2 snd_pcm_hw_params_test_channels 2 snd_pcm_sw_params_set_xrun_mode 2 snd_ctl_elem_value_get_integer 2 snd_pcm_hw_params_get_tick_time_max 2 snd_async_handler_get_callback_private 2 snd_hctl_open 2 snd_pcm_hw_params_get_tick_time_min 2 snd_pcm_readn 2 snd_seq_unsubscribe_port 2 snd_hctl_elem_info 2 snd_pcm_access_mask_sizeof 2 snd_seq_disconnect_to 2 snd_pcm_hw_params_dump 2 snd_pcm_hw_params_get_period_time_min 2 snd_pcm_rewind 2 snd_seq_client_info_get_type 2 snd_pcm_hw_params_copy 2 snd_seq_create_port 2 snd_pcm_type 2 snd_hwdep_info_sizeof 2 snd_hctl_elem_write 2 snd_ctl_elem_value_free 2 snd_ctl_elem_info_get_count 2 snd_pcm_hw_params_set_period_size 2 snd_seq_port_info_get_type 2 snd_ctl_elem_id_set_name 2 snd_ctl_elem_id_clear 2 snd_ctl_elem_info_free 2 snd_pcm_hwsync 2 snd_pcm_info 2 snd_seq_port_info_set_type 2 snd_mixer_selem_set_playback_volume_all 2 snd_ctl_elem_info_clear 2 snd_pcm_state_name 2 snd_pcm_sw_params_get_boundary 2 snd_hctl_elem_read 2 snd_ctl_elem_id_malloc 2 snd_ctl_elem_id_set_interface 2 snd_pcm_format_mask_sizeof 2 snd_ctl_elem_id_free 2 snd_rawmidi_poll_descriptors_count 2 snd_rawmidi_poll_descriptors 2 snd_pcm_hw_params_get_buffer_time_max 2 snd_midi_event_decode 2 snd_pcm_format_cpu_endian 2 snd_ctl_elem_value_malloc 2 snd_mixer_selem_set_capture_volume_all 2 snd_ctl_elem_info_get_step 2 snd_seq_port_subscribe_free 2 snd_output_stdio_attach 2 snd_ctl_elem_info_get_min 2 snd_seq_port_subscribe_malloc 2 snd_mixer_selem_id_get_index 2 snd_pcm_status_get_tstamp 2 snd_pcm_hw_params_get_buffer_time_min 2 snd_pcm_format_name 2 snd_ctl_elem_info_get_max 1 snd_seq_port_subscribe_copy 1 snd_pcm_sw_params_set_sleep_min 1 snd_timer_info_get_resolution 1 snd_ctl_hwdep_next_device 1 snd_midi_event_init 1 snd_mixer_selem_get_id 1 snd_pcm_forward 1 snd_pcm_hw_params_test_period_size 1 snd_mixer_find_selem 1 snd_config_add 1 snd_pcm_areas_silence 1 snd_timer_poll_descriptors_count 1 snd_pcm_hw_free 1 snd_timer_params_set_ticks 1 snd_seq_poll_descriptors_revents 1 snd_seq_port_info_free 1 snd_pcm_hw_params_get_sbits 1 snd_seq_query_subscribe_set_root 1 snd_pcm_format_description 1 snd_pcm_status_dump 1 snd_pcm_sw_params_dump 1 snd_seq_get_client_info 1 snd_seq_query_subscribe_get_root 1 snd_timer_params_set_auto_start 1 snd_timer_params 1 snd_timer_open 1 snd_mixer_selem_id_set_name 1 snd_pcm_area_copy 1 snd_rawmidi_poll_descriptors_revents 1 snd_timer_read 1 snd_timer_id_malloc 1 snd_seq_port_subscribe_get_exclusive 1 snd_mixer_selem_has_common_volume 1 snd_timer_params_get_ticks 1 snd_seq_alloc_queue 1 snd_asoundlib_version 1 snd_seq_port_info_set_port_specified 1 snd_timer_close 1 snd_mixer_detach 1 snd_timer_info_malloc 1 snd_seq_client_info_set_name 1 snd_seq_port_subscribe_get_sender 1 snd_seq_query_subscribe_get_addr 1 snd_seq_query_subscribe_get_queue 1 snd_seq_port_subscribe_get_time_real 1 snd_seq_port_subscribe_set_exclusive 1 snd_config_substitute 1 snd_seq_query_subscribe_get_time_real 1 snd_timer_stop 1 snd_timer_info 1 snd_seq_query_subscribe_get_exclusive 1 snd_output_close 1 snd_seq_port_subscribe_get_time_update 1 snd_seq_port_subscribe_set_time_update 1 snd_seq_port_subscribe_get_dest 1 snd_timer_params_malloc 1 snd_seq_port_subscribe_get_queue 1 snd_config_copy 1 snd_seq_query_subscribe_get_index 1 snd_seq_set_client_info 1 snd_seq_port_subscribe_set_queue 1 snd_seq_port_info_malloc 1 snd_config_get_ascii 1 snd_seq_queue_tempo_set_ppq 1 snd_seq_query_subscribe_set_type 1 snd_pcm_hw_params_get_rate_numden 1 snd_midi_event_reset_encode 1 snd_seq_queue_tempo_sizeof 1 snd_pcm_open_lconf 1 snd_ctl_hwdep_info 1 snd_pcm_hw_params_get_subformat 1 snd_pcm_hw_params_set_periods 1 snd_seq_query_subscribe_sizeof 1 snd_mixer_elem_get_type 1 snd_seq_query_subscribe_get_time_update 1 snd_seq_query_subscribe_set_index 1 snd_config_search_alias_hooks 1 snd_card_get_longname 1 snd_config_imake_integer 1 snd_seq_query_port_subscribers 1 snd_seq_queue_tempo_set_tempo 1 snd_config_update_free_global 1 snd_hwdep_info_set_device 1 snd_seq_get_any_client_info 1 snd_pcm_dump 1 snd_seq_set_port_info 1 snd_seq_get_port_info 1 snd_mixer_selem_has_playback_switch_joined 1 snd_hwdep_poll_descriptors 1 snd_pcm_format_size 1 snd_seq_delete_port 1 snd_seq_control_queue 1 snd_seq_event_length 1 snd_config_delete 1 snd_mixer_selem_id_set_index 1 snd_pcm_hw_params_set_periods_min 1 snd_seq_port_info_set_midi_channels 1 snd_mixer_selem_has_playback_volume_joined 1 snd_seq_free_queue 1 snd_hwdep_ioctl 1 snd_pcm_hw_params_set_periods_integer 1 snd_seq_parse_address 1 snd_timer_poll_descriptors 1 snd_async_del_handler 1 snd_pcm_status_get_avail_max 1 snd_seq_get_any_port_info 1 snd_hwdep_info_get_iface 1 snd_mixer_selem_set_playback_switch 1 snd_seq_port_subscribe_set_time_real 1 snd_timer_start 1 snd_hwdep_info_get_name 1 snd_midi_event_encode 1 snd_pcm_status_get_delay 1 snd_hwdep_read 1 snd_seq_set_queue_tempo 0 snd_instr_header_get_id 0 snd_pcm_unlink 0 snd_pcm_hw_params_set_access_first 0 snd_ctl_rawmidi_prefer_subdevice 0 snd_pcm_hw_params_test_buffer_size 0 snd_pcm_info_get_subdevices_avail 0 snd_pcm_sw_params_get_silence_size 0 snd_ctl_elem_list_malloc 0 snd_output_buffer_open 0 snd_pcm_samples_to_bytes 0 snd_pcm_null_open 0 snd_pcm_hook_get_private 0 snd_pcm_status_get_htstamp 0 snd_ctl_elem_value_get_bytes 0 snd_ctl_elem_list_set_offset 0 snd_ctl_elem_value_get_name 0 snd_timer_params_set_early_event 0 snd_pcm_meter_get_rate 0 snd_config_save 0 snd_pcm_meter_get_boundary 0 snd_pcm_meter_get_bufsize 0 snd_seq_remove_events_get_queue 0 snd_pcm_mulaw_open 0 snd_hwdep_info_get_id 0 snd_hctl_elem_prev 0 snd_pcm_info_get_sync 0 snd_config_search_definition 0 snd_pcm_multi_open 0 snd_pcm_meter_search_scope 0 snd_hwdep_dsp_status_get_dsp_loaded 0 snd_ctl_event_elem_get_numid 0 snd_hctl_poll_descriptors 0 snd_pcm_mmap_writen 0 snd_mixer_elem_empty 0 snd_pcm_info_get_device 0 snd_instr_header_get_alias 0 snd_pcm_hw_params_set_period_size_max 0 snd_pcm_hw_params_set_period_size_integer 0 snd_pcm_hw_params_set_period_size_first 0 snd_pcm_hw_params_set_buffer_time_min 0 snd_pcm_hw_params_get_fifo_size 0 snd_mixer_elem_get_callback_private 0 snd_ctl_elem_info_set_id 0 snd_pcm_hw_params_set_format_last 0 snd_seq_port_info_get_timestamp_real 0 snd_pcm_hw_params_set_period_time_min 0 snd_pcm_scope_set_name 0 snd_seq_set_client_pool 0 snd_pcm_hw_params_set_periods_last 0 snd_pcm_hw_params_set_periods_first 0 snd_pcm_hw_params_set_period_time_minmax 0 snd_pcm_hw_params_set_period_time_max 0 snd_pcm_hw_params_set_period_size_minmax 0 snd_pcm_hw_params_set_period_size_min 0 snd_pcm_hw_params_set_period_time_last 0 snd_pcm_hw_params_set_period_time_first 0 snd_pcm_hw_params_set_period_time 0 snd_config_get_integer64 0 snd_pcm_hw_params_set_access_last 0 snd_pcm_meter_get_now 0 snd_pcm_hw_params_set_buffer_size_last 0 snd_pcm_hw_open_fd 0 snd_pcm_hw_params_set_buffer_size 0 snd_seq_reset_pool_input 0 snd_ctl_card_info_get_card 0 snd_pcm_hw_params_get_subformat_mask 0 snd_ctl_elem_remove 0 snd_pcm_scope_s16_get_channel_buffer 0 snd_timer_query_next_device 0 snd_pcm_hw_params_set_channels_first 0 snd_pcm_hw_params_set_buffer_time_minmax 0 snd_pcm_hw_params_set_buffer_time_max 0 snd_pcm_scope_set_ops 0 snd_pcm_hw_params_set_channels_min 0 snd_pcm_hw_params_set_channels_last 0 snd_ctl_elem_info_set_interface 0 snd_pcm_hw_params_set_buffer_size_min 0 snd_pcm_hw_params_set_buffer_size_max 0 snd_hctl_elem_get_index 0 snd_pcm_hw_params_set_buffer_time_first 0 snd_pcm_hw_params_set_buffer_time 0 snd_pcm_hw_params_test_tick_time 0 snd_pcm_hw_params_test_subformat 0 snd_seq_get_input_buffer_size 0 snd_pcm_info_copy 0 snd_dlclose 0 snd_config_get_bool 0 snd_pcm_hw_params_set_buffer_size_first 0 snd_seq_queue_timer_get_type 0 snd_ctl_elem_info_get_device 0 snd_instr_fm_convert_from_stream 0 snd_pcm_hw_open 0 snd_pcm_hw_params_test_period_time 0 snd_ctl_poll_descriptors_revents 0 snd_pcm_hook_get_pcm 0 snd_pcm_info_get_stream 0 snd_pcm_info_get_subdevice 0 snd_ctl_elem_value_set_enumerated 0 snd_pcm_info_get_subclass 0 snd_pcm_info_get_class 0 snd_ctl_elem_value_set_name 0 snd_pcm_hw_params_set_period_size_last 0 snd_pcm_hook_set_private 0 snd_pcm_hooks_open 0 snd_pcm_hw_params_set_format_mask 0 snd_pcm_hw_params_set_subformat_first 0 snd_timer_query_open_lconf 0 snd_pcm_hw_params_set_rate_minmax 0 snd_hctl_elem_get_subdevice 0 snd_instr_header_set_name 0 snd_pcm_hw_params_set_subformat_mask 0 snd_ctl_elem_info_get_index 0 snd_pcm_hw_params_set_periods_minmax 0 snd_ctl_elem_list_get_numid 0 snd_pcm_hw_params_set_rate_max 0 snd_pcm_hw_params_set_rate_last 0 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snd_pcm_direct_poll_revents 0 snd_pcm_direct_server_create 0 _snd_hwdep_hw_open 0 snd_interval_mulkdiv 0 snd_rawmidi_virtual_open 0 snd_pcm_hw_param_set_max 0 snd_pcm_hw_param_set_mask 0 _snd_func_private_card_driver_dlsym_config_evaluate_001 0 __snd_hwdep_hw_open_dlsym_hwdep_001 0 snd_pcm_direct_semaphore_create_or_connect 0 snd_pcm_direct_client_discard 0 snd_rawmidi_virtual_ops 0 _snd_timer_query_hw_open 0 __snd_pcm_multi_open_dlsym_pcm_001 0 __snd_pcm_hooks_open_dlsym_pcm_001 0 snd_pcm_direct_shm_create_or_connect 0 __snd_pcm_hook_ctl_elems_install_dlsym_pcm_001 0 snd_pcm_hw_param_set_last 0 snd_atomic_read_wait 0 snd_pcm_hw_param_set_near 0 snd_pcm_slave_conf 0 _snd_pcm_boundary 0 __snd_pcm_adpcm_open_dlsym_pcm_001 0 snd_pcm_direct_initialize_poll_fd 0 __snd_ctl_shm_open_dlsym_control_001 0 __snd_timer_params_set_filter 0 snd_pcm_open_slave 0 __snd_pcm_asym_open_dlsym_pcm_001 0 _snd_pcm_hw_param_set_max 0 __snd_pcm_alaw_open_dlsym_pcm_001 0 __snd_ctl_hw_open_dlsym_control_001 0 snd_interval_add 0 snd_pcm_hw_param_get_min 0 snd_interval_div 0 snd_hwdep_hw_open 0 snd_timer_query_hw_open 0 snd_pcm_adpcm_decode 0 __snd_pcm_sw_params_get_silence_threshold 0 snd_pcm_new 0 _snd_pcm_mmap_hw_ptr 0 __snd_pcm_copy_open_dlsym_pcm_001 0 snd_pcm_direct_async 0 __snd_pcm_hw_open_dlsym_pcm_001 0 __snd_timer_query_info 0 snd_pcm_plugin_fast_ops 0 snd_pcm_direct_client_connect 0 __snd_pcm_shm_open_dlsym_pcm_001 0 snd_pcm_plug_open 0 snd_pcm_areas_from_buf 0 _snd_pcm_hw_param_set_interval 0 snd_pcm_linear_get_index 0 snd_pcm_areas_from_bufs 0 snd_pcm_async 0 __snd_pcm_dmix_open_dlsym_pcm_001 0 snd_pcm_read_mmap 0 snd_pcm_channel_info_shm 0 _snd_rawmidi_virtual_open 0 _snd_ctl_poll_descriptor 0 __snd_timer_query_status 0 __snd_timer_query_params 0 _snd_ctl_hw_open 0 _snd_config_hook_load_dlsym_config_hook_001 0 snd_pcm_direct_mmap 0 snd_pcm_set_appl_ptr 0 __snd_timer_query_hw_open_dlsym_timer_query_001 0 snd_timer_hw_open 0 _snd_func_private_string_dlsym_config_evaluate_001 0 _snd_func_datadir_dlsym_config_evaluate_001 0 __snd_pcm_mulaw_open_dlsym_pcm_001 0 _snd_func_private_pcm_subdevice_dlsym_config_evaluate_001 0 _snd_func_pcm_id_dlsym_config_evaluate_001 0 __snd_pcm_null_open_dlsym_pcm_001 0 __snd_pcm_plug_open_dlsym_pcm_001 0 snd_shm_area_destructor 0 snd_pcm_linear_get32_index 0 snd_pcm_direct_info 0 __snd_pcm_sw_params_get_silence_size 0 __snd_pcm_sw_params_get_start_threshold 0 __snd_pcm_sw_params_get_sleep_min 0 __snd_pcm_share_open_dlsym_pcm_001 0 __snd_timer_params_get_exclusive 0 __snd_pcm_sw_params_get_avail_min 0 __snd_pcm_status_get_trigger_htstamp 0 __snd_timer_params_set_exclusive 0 __snd_timer_hw_open_dlsym_timer_001 0 snd_pcm_mulaw_encode 0 snd_pcm_alaw_decode 0 snd_pcm_hw_param_always_eq 0 snd_pcm_hw_refine 0 __snd_pcm_sw_params_get_stop_threshold 0 __snd_rawmidi_hw_open_dlsym_rawmidi_001 0 snd_pcm_conf_generic_id 0 snd_pcm_hw_param_never_eq 0 _snd_seq_hw_open 0 snd_pcm_hw_param_get_max 0 snd_pcm_hw_param_name 0 snd_pcm_mmap_appl_forward 0 _snd_pcm_hw_params_refine 0 _snd_pcm_hw_param_refine 0 snd_pcm_hw_param_get_mask 0 _snd_pcm_hw_param_set_minmax 0 snd_pcm_hw_param_set_integer 0 snd_pcm_hw_param_set 0 snd_pcm_set_hw_ptr 0 snd_pcm_hw_param_set_first 0 _snd_rawmidi_hw_open 0 _snd_pcm_plug_open 0 __snd_seq_hw_open_dlsym_seq_001 0 snd_pcm_direct_sw_params 0 _snd_pcm_poll_descriptor 0 __snd_pcm_ladspa_open_dlsym_pcm_001 0 _snd_func_getenv_dlsym_config_evaluate_001 0 __snd_pcm_hw_params_set_access_first 0 snd_pcm_hw_param_dump 0 __snd_pcm_meter_open_dlsym_pcm_001 0 _snd_func_refer_dlsym_config_evaluate_001 0 snd_pcm_read_areas 0 __snd_pcm_route_open_dlsym_pcm_001 0 __snd_pcm_iec958_open_dlsym_pcm_001 0 __snd_pcm_dshare_open_dlsym_pcm_001 0 snd_pcm_adpcm_encode 0 _snd_pcm_hw_params_any 0 _snd_pcm_hw_param_set_min 0 _snd_pcm_hw_param_set_empty 0 _snd_pcm_hw_param_set 0 _snd_pcm_hw_param_set_mask 0 snd_pcm_hw_param_empty 0 snd_pcm_plugin_init 0 _snd_func_igetenv_dlsym_config_evaluate_001 0 snd_is_local 0 _snd_config_hook_load_for_all_cards_dlsym_config_hook_001 0 snd_interval_refine_min 0 snd_pcm_munmap 0 snd_interval_refine_set 0 snd_pcm_hw_param_set_minmax 0 snd_rawmidi_hw_open 0 snd_receive_fd 0 snd_pcm_direct_parse_bindings 0 snd_ctl_hw_ops 0 snd_ctl_hw_open 0 __snd_pcm_rate_open_dlsym_pcm_001 0 __snd_ctl_elem_info_get_dimensions 0 _snd_ctl_shm_open 0 snd_interval_refine_max 0 snd_pcm_meter_open 0 __snd_rawmidi_virtual_open_dlsym_rawmidi_001 0 snd_pcm_hw_param_get_interval 0 snd_pcm_write_areas 0 snd_pcm_direct_hw_params 0 snd_ctl_new 0 _snd_func_card_id_dlsym_config_evaluate_001 0 _snd_func_card_driver_dlsym_config_evaluate_001 0 snd_pcm_link_hw_ptr 0 snd_pcm_unlink_hw_ptr 0 __snd_ctl_elem_info_get_dimension 0 __snd_pcm_sw_params_get_xfer_align 0 snd_pcm_linear_convert_index 0 snd_pcm_direct_hw_free 0 __snd_timer_params_get_filter 0 snd_interval_sub 0 snd_ctl_async 0 _snd_timer_hw_open 0 snd_pcm_linear_getput 0 snd_pcm_unlink_appl_ptr 0 snd_pcm_linear_put_index 0 snd_pcm_direct_channel_info 0 snd_seq_create_event 0 __snd_pcm_status_get_htstamp 0 snd_send_fd 0 snd_pcm_linear_put32_index 0 snd_interval_muldiv 0 snd_pcm_write_mmap 0 snd_pcm_linear_convert 0 snd_pcm_hw_fast_tstamp 0 snd_pcm_hw_refine_soft 0 snd_pcm_hw_param_refine_near 0 snd_pcm_mmap_hw_forward 0 snd_pcm_direct_munmap 0 snd_determine_driver 0 snd_interval_refine 0 snd_pcm_free 0 snd_pcm_link_appl_ptr 0 snd_pcm_hw_params_slave 0 snd_pcm_hw_param_set_min 0 snd_pcm_hw_refine_slave 0 snd_pcm_mmap_hw_backward 0 snd_interval_refine_first 0 snd_interval_mul 0 snd_pcm_hw_param_any 0 snd_pcm_direct_nonblock 0 snd_func_private_pcm_subdevice 0 snd_func_pcm_id 0 __snd_pcm_type_name 0 snd_pcm_mulaw_decode 0 snd_interval_print 0 __snd_pcm_linear_open_dlsym_pcm_001 0 snd_interval_muldivk 0 snd_pcm_alaw_encode 0 __snd_pcm_dsnoop_open_dlsym_pcm_001 0 snd_seq_hw_open 0 _snd_func_concat_dlsym_config_evaluate_001 0 _snd_pcm_meter_open 0 snd_seq_hw_ops 0 snd_ctl_shm_ops 0 snd_pcm_mmap 0 __snd_pcm_file_open_dlsym_pcm_001 0 snd_pcm_mmap_appl_backward 0 snd_ctl_shm_open 0 snd_timer_async 0 snd_pcm_lfloat_open 0 _snd_pcm_lfloat_open 0 snd_pcm_lfloat_convert_integer_float 0 snd_pcm_lfloat_convert_float_integer 0 snd_pcm_lfloat_put_s32_index 0 __snd_pcm_lfloat_open_dlsym_pcm_001 0 snd_pcm_lfloat_get_s32_index 0 snd_ctl_elem_add_integer64 0 snd_pcm_softvol_open 0 _snd_pcm_softvol_open 0 snd_ctl_elem_add_integer 0 snd_ctl_elem_add_iec958 0 snd_ctl_elem_info_is_user 0 snd_ctl_elem_add_boolean 0 __snd_pcm_softvol_open_dlsym_pcm_001 0 snd_timer_ginfo_get_name 0 snd_timer_ginfo_get_resolution 0 snd_pcm_ioplug_set_param_minmax 0 snd_timer_ginfo_get_resolution_max 0 snd_pcm_ioplug_reinit_status 0 snd_async_handler_get_timer 0 snd_async_add_timer_handler 0 snd_pcm_ioplug_set_param_list 0 snd_timer_ginfo_get_card 0 snd_pcm_ioplug_params_reset 0 snd_err_msg 0 snd_timer_ginfo_malloc 0 snd_timer_ginfo_get_tid 0 snd_timer_ginfo_copy 0 snd_timer_ginfo_get_clients 0 snd_pcm_hw_params_set_export_buffer 0 snd_pcm_ioplug_delete 0 snd_pcm_ioplug_mmap_areas 0 snd_timer_ginfo_get_id 0 snd_timer_ginfo_set_tid 0 snd_timer_ginfo_get_flags 0 snd_pcm_ioplug_create 0 snd_pcm_extplug_create 0 snd_pcm_extplug_params_reset 0 snd_timer_ginfo_sizeof 0 snd_pcm_extplug_delete 0 snd_pcm_extplug_set_param_minmax 0 snd_pcm_hw_params_get_rate_resample 0 snd_timer_ginfo_get_resolution_min 0 snd_pcm_extplug_set_slave_param_list 0 snd_names_list 0 snd_pcm_extplug_set_param_list 0 snd_names_list_free 0 snd_timer_ginfo_free 0 snd_pcm_hw_params_get_export_buffer 0 snd_pcm_parse_control_id 0 snd_pcm_extplug_set_slave_param_minmax 0 snd_pcm_generic_rewind 0 snd_pcm_generic_sw_params 0 snd_pcm_generic_start 0 snd_pcm_direct_set_timer_params 0 snd_dlobj_cache_add 0 snd_pcm_generic_link 0 snd_ext_parm_set_minmax 0 snd_pcm_generic_state 0 snd_pcm_generic_writei 0 snd_pcm_generic_mmap 0 snd_pcm_generic_async 0 snd_pcm_generic_info 0 snd_pcm_direct_clear_timer_queue 0 snd_pcm_generic_drain 0 snd_pcm_generic_drop 0 snd_pcm_generic_close 0 snd_pcm_generic_hw_free 0 snd_pcm_generic_nonblock 0 snd_pcm_generic_munmap 0 snd_pcm_generic_hw_refine 0 snd_pcm_generic_hw_params 0 snd_pcm_generic_forward 0 snd_pcm_generic_writen 0 snd_ext_parm_clear 0 snd_pcm_generic_readi 0 snd_ext_parm_mask_refine 0 snd_dlobj_cache_cleanup 0 snd_dlobj_cache_lookup 0 snd_pcm_generic_channel_info 0 snd_pcm_generic_poll_descriptors 0 snd_pcm_generic_hwsync 0 snd_pcm_generic_prepare 0 snd_pcm_generic_avail_update 0 snd_ext_parm_set_list 0 snd_pcm_generic_poll_descriptors_count 0 snd_pcm_generic_status 0 snd_pcm_generic_readn 0 snd_pcm_generic_resume 0 snd_pcm_generic_pause 0 snd_interval_list 0 snd_pcm_generic_delay 0 snd_ext_parm_interval_refine 0 snd_pcm_generic_reset 0 snd_pcm_generic_unlink 0 snd_pcm_generic_poll_revents 0 snd_pcm_generic_mmap_commit 0 snd_pcm_direct_timer_stop 0 snd_pcm_wait_nocheck 0 snd_mixer_sbasic_get_private 0 snd_mixer_class_get_mixer 0 snd_mixer_get_hctl 0 snd_mixer_class_set_private_free 0 snd_mixer_class_copy 0 snd_mixer_elem_free 0 snd_mixer_simple_basic_register 0 snd_mixer_class_get_private 0 snd_mixer_selem_set_playback_dB_all 0 snd_mixer_class_get_event 0 snd_mixer_selem_is_enum_capture 0 snd_mixer_sbasic_set_private 0 snd_mixer_class_free 0 snd_mixer_sbasic_set_private_free 0 snd_mixer_selem_set_playback_dB 0 snd_mixer_elem_get_private 0 snd_mixer_class_sizeof 0 snd_mixer_elem_new 0 snd_mixer_selem_get_capture_dB_range 0 snd_mixer_class_get_compare 0 snd_mixer_selem_get_playback_dB_range 0 snd_mixer_sbasic_info 0 snd_mixer_class_set_event 0 snd_mixer_selem_get_capture_dB 0 snd_mixer_class_set_compare 0 snd_mixer_simple_none_register 0 snd_mixer_selem_set_capture_dB_all 0 snd_mixer_selem_is_enum_playback 0 snd_ctl_ext_delete 0 snd_mixer_selem_set_capture_dB 0 snd_mixer_class_set_private 0 snd_mixer_detach_hctl 0 snd_mixer_attach_hctl 0 snd_mixer_class_malloc 0 snd_mixer_selem_get_playback_dB 0 snd_ctl_ext_create 0 snd_pcm_direct_resume 0 _snd_func_pcm_args_by_class_dlsym_config_evaluate_001 0 snd_func_pcm_args_by_class 0 snd_pcm_direct_open_secondary_client 0 snd_mixer_selem_compare 0 snd_pcm_recover 0 snd_pcm_set_params 0 snd_pcm_get_params 0 snd_pcm_direct_parse_open_conf 0 _snd_seq_open_lconf 0 snd_config_check_hop 0 snd_config_set_hop 0 snd_pcm_generic_link_fd 0 _snd_pcm_link_descriptors 0 snd_pcm_generic_link2 0 snd_pcm_rate_get_default_converter 0 snd_hctl_elem_tlv_read 0 snd_ctl_elem_tlv_write 0 snd_ctl_elem_tlv_command 0 snd_hctl_elem_tlv_write 0 snd_ctl_elem_info_is_tlv_commandable 0 snd_ctl_elem_info_is_tlv_writable 0 snd_ctl_elem_info_is_tlv_readable 0 snd_hctl_elem_tlv_command 0 snd_ctl_elem_tlv_read 0 _snd_pcm_rate_linear_open 0 snd_pcm_direct_initialize_secondary_slave

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[alsa-devel] Some drivers don't create all necessary sysfs symlinks
by Lennart Poettering 30 Nov '07

30 Nov '07

Hi! Apparently not all ALSA drivers set the "device" symlink properly. This creates problems with HAL which then is unable to manage permissions to those files properly. One example of such a driver is EMU10K1X. For more information, see: https://bugzilla.redhat.com/show_bug.cgi?id=370821#c26 Also reported on the ALSA BTS: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3575 Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4

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[alsa-devel] Problems while using mplayer based on ALSA
by 30 Nov '07

30 Nov '07

Hi All: Im having problems while using mplayer 1.0 to play music based on alsa 1.0.15. Im using an ARM9 system and montavista linux 2.6.18. Here's what the problem is and what's modified in the mplayer.conf: *************************************************************************************************************** / $ mplayer /tmp/a.wav MPlayer 1.0rc2-4.2.0 (C) 2000-2007 MPlayer Team CPU: ARM 115 audio & 237 video codecs Playing /tmp/a.wav. Audio file file format detected. ========================================================================== Opening audio decoder: [pcm] Uncompressed PCM audio decoder AUDIO: 44100 Hz, 2 ch, s16le, 1411.2 kbit/100.00% (ratio: 176400->176400) Selected audio codec: [pcm] afm: pcm (Uncompressed PCM) ========================================================================== [AO_ALSA] alsa-lib: conf.c:2699:(snd_config_hooks_call) Cannot open shared library (null) [AO_ALSA] alsa-lib: conf.c:3076:(snd_config_update_r) hooks failed, removing configuration [AO_ALSA] Playback open error: No such file or directory Could not open/initialize audio device -> no sound. Audio: no sound Video: no video Exiting... (End of file) ***************************************************************************************************************** /etc/mplayer/mplayer.conf ################## # audio settings # ################## # Specify default audio driver (see -ao help for a list). ao=alsa # Use SDL audio driver with the esd subdriver by default. #ao = sdl:esd # Specify the mixer device. #mixer = /dev/mixer # Resample the sound to 44100Hz with the lavcresample audio filter. #af=lavcresample=44100 **************************************************************************************************************** Can anybody tell me what going wrong with this? Thanks in advance! semiyd _________________________________________________________________ Connect to the next generation of MSN Messenger http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=…

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[alsa-devel] HDA or AC97 for Nvidia MCP61S?
by alsa-devel.20.pris＠spamgourmet.com 30 Nov '07

30 Nov '07

Hello, as I already reported on another email I'm having problems with my sound: http://thread.gmane.org/gmane.linux.alsa.devel/49412 My motherboard is PCCHIPS A13G+. The sound hardware of my Mobo is in the NVIDIA MCP61S Single chipset. This chipset consists of: GeForce(R) 6100 GPU and MCP nForce(R) 405 Codec: Realtek ALC660-VD When looking at the soundcard matrix for Nvidia there are 2 options listed: http://www.alsa-project.org/main/index.php/Matrix:Vendor-Nvidia AC97 nForce-1 - nForce-4 HDA nForce-430 and later Since my chipset is nForce 405 should I select the first option AC97? But everyone seems to advise me to use the HDA option. When I look at the details for HDA I see only "Intel HDA driver" and nothing about which particular chipsets are supported. On the AC97 option there is a list of chips but all are from Intel and none from Nvidia. So I'm confused. Which soundcard is the correct one for me? Is my particular chipset supported at all? Thanks!

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[alsa-devel] pcm test app failure on PowerPC
by John Faith 29 Nov '07

29 Nov '07

Hello, I am using alsa-lib 1.0.15 on an embedded PowerPC board. I can play audio with aplay, but gstreamer fails, so I built and ran the 'pcm' app in alsa-lib-1.0.15/test/. pcm gives: # export LIBASOUND_DEBUG=1 # ./pcm Playback device is plughw:0,0 Stream parameters are 44100Hz, S16_BE, 1 channels Sine wave rate is 440.0000Hz Using transfer method: write ALSA lib pcm_plug.c:773:(snd_pcm_plug_hw_refine_schange) Unable to find an usable access for 'plughw:0,0' ALSA ERROR hw_params: set (FORMAT) value = S16_BE : Invalid argument ACCESS: RW_INTERLEAVED FORMAT: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE SUBFORMAT: STD SAMPLE_BITS: [4 64] FRAME_BITS: [4 640000] CHANNELS: [1 10000] RATE: [4000 4294967295) PERIOD_TIME: [25000 300000] PERIOD_SIZE: [100 1288490189) PERIOD_BYTES: [50 4294967295) PERIODS: (0 12884902) BUFFER_TIME: [1 4294967295] BUFFER_SIZE: [100 1288490188] BUFFER_BYTES: [50 4294967295] TICK_TIME: 4000 Sample format not available for playback: Invalid argument Setting of hwparams failed: Invalid argument Is the driver saying it can do format S16_BE somewhere, but fails when the format is actually set? How can I dig deeper on this? Thanks in advance for any ideas! , John

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[alsa-devel] PCM Volume on FSC V5505
by Jan-Simon Möller 29 Nov '07

29 Nov '07

Hi ! With the patches, the sound works - well done! But I need to make sure the PCM volume is max @ 50% . If its over 50% sound is clipped and ugly (overload?). Here's cat /proc/asound/card0/codec#0 when in use (patched kernel with your patches for v5505) Codec: Conexant CX20549 (Venice) Address: 0 Vendor Id: 0x14f15045 Subsystem Id: 0x1734110e Revision Id: 0x100100 No Modem Function Group found Default PCM: rates [0x140]: 48000 96000 bits [0xe]: 16 20 24 formats [0x1]: PCM Default Amp-In caps: N/A Default Amp-Out caps: N/A Node 0x10 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out Amp-Out caps: ofs=0x2b, nsteps=0x2b, stepsize=0x05, mute=1 Amp-Out vals: [0x28 0x28] Pincap 0x0810014: OUT EAPD Detect Pin Default 0x92170110: [Fixed] Speaker at Int Front Conn = Analog, Color = Unknown Pin-ctls: 0x40: OUT Power: 0x0 Connection: 2 0x19 0x17* Node 0x11 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out Amp-Out caps: ofs=0x2b, nsteps=0x2b, stepsize=0x05, mute=1 Amp-Out vals: [0x28 0x28] Pincap 0x08113c: IN OUT HP Detect Pin Default 0x0121401f: [Jack] HP Out at Ext Rear Conn = 1/8, Color = Green Pin-ctls: 0xc0: OUT HP Power: 0x0 Connection: 2 0x19 0x17* Node 0x12 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out Amp-Out caps: ofs=0x2b, nsteps=0x2b, stepsize=0x05, mute=1 Amp-Out vals: [0xab 0xab] Pincap 0x08113c: IN OUT HP Detect Pin Default 0x01a19020: [Jack] Mic at Ext Rear Conn = 1/8, Color = Pink Pin-ctls: 0x20: IN Power: 0x0 Connection: 2 0x19* 0x17 Node 0x13 [Pin Complex] wcaps 0x400301: Stereo Digital Pincap 0x0810: OUT Pin Default 0x214571f0: [Jack] SPDIF Out at Sep Rear Conn = Optical, Color = Yellow Pin-ctls: 0x00: Connection: 1 0x18 Node 0x14 [Pin Complex] wcaps 0x400081: Stereo Pincap 0x081124: IN Detect Pin Default 0x97a7012e: [Fixed] Mic at Int Riser Conn = Analog, Color = Unknown Pin-ctls: 0x24: IN Node 0x15 [Pin Complex] wcaps 0x400001: Stereo Pincap 0x0820: IN Pin Default 0x400001f0: [N/A] Line Out at Ext N/A Conn = Unknown, Color = Unknown Pin-ctls: 0x00: Node 0x16 [Beep Generator Widget] wcaps 0x70000c: Mono Amp-Out Amp-Out caps: ofs=0x07, nsteps=0x07, stepsize=0x0b, mute=1 Amp-Out vals: [0x06] Node 0x17 [Audio Mixer] wcaps 0x20050b: Stereo Amp-In Amp-In caps: ofs=0x14, nsteps=0x2b, stepsize=0x05, mute=1 Amp-In vals: [0x14 0x14] [0xab 0xab] [0xa0 0xa0] [0x80 0x80] [0x80 0x80] Power: 0x0 Connection: 5 0x19 0x14 0x12 0x11 0x15 Node 0x18 [Audio Output] wcaps 0x211: Stereo Digital PCM: rates [0x40]: 48000 bits [0x6]: 16 20 formats [0x5]: PCM AC3 Node 0x19 [Audio Output] wcaps 0xc11: Stereo PCM: rates [0x540]: 48000 96000 192000 bits [0xe]: 16 20 24 formats [0x1]: PCM Power: 0x0 Node 0x1a [Audio Input] wcaps 0x100d0b: Stereo Amp-In Amp-In caps: ofs=0x00, nsteps=0x17, stepsize=0x05, mute=1 Amp-In vals: [0x17 0x17] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] Power: 0x0 Connection: 5 0x17 0x14 0x12* 0x11 0x15 Node 0x1b [Vendor Defined Widget] wcaps 0xf00000: Mono Best regards Jan-Simon

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Re: [alsa-devel] mbox II
by rmgls＠free.fr 29 Nov '07

29 Nov '07

On Wed, 28 Nov 2007 10:30:43 +0100 "Clemens Ladisch" <cladisch(a)fastmail.net> wrote: ... >> aplay plughw:0 (plughw:0,0) (plughw:0,1) (plughw:0,2) coq.wav >> >> this time no coredump, aplay try to play, but no sound on the monitoring >> of the mbox II, a complete silence. >> >> - perhaps the mixer is muted! >> >> i cannot adjust the mixer: >> amixer >> no elem> found. > Some USB devices don't have a software-controllable mixer. > Please show the output of "lsusb -v" for this device. lsusb -v ... Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0dba idProduct 0x3000 bcdDevice 1.38 iManufacturer 1 Digidesign iProduct 2 Mbox 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 646 bNumInterfaces 7 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 254 Application Specific Interface bInterfaceSubClass 1 Device Firmware Update bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 2 Mbox 2 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 96 bInCollection 4 baInterfaceNr( 0) 2 baInterfaceNr( 1) 3 baInterfaceNr( 2) 4 baInterfaceNr( 3) 5 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 5 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 6 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bSourceID 5 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 7 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 8 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bSourceID 7 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 1 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 4 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 3 iTerminal 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 2 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 131 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 2 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 3 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 131 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 2 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 2 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 132 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 2 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 3 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 132 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 2 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 6 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 8193 IEC1937_AC-3 AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 3 (FORMAT_TYPE_III) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x00c0 1x 192 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 6 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) Best Regards, raoul rmgls(a)free.Fr

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[alsa-devel] [usb-audio] M-Audio FastTrack Pro giving invalid sample rates
by Lasse Kärkkäinen 29 Nov '07

29 Nov '07

Resending because nobody reacted the last time. This is still broken with 2.6.23.1, except for the fact that it doesn't seem to be possible to adjust bConfigurationValue anymore (this is not exposed under sysfs at least on my system), so I am stuck with configuration 1. Original message follows: This bug has been around for years... ALSA seems to think that the card supports a wide range of sampling rates, but it does not manage to set them in practice. I do not know which is faulty, ALSA rate setting or the USB info sent by the device, but the problem needs to be fixed. I did some measurements with the alsarate program, attached to my other post (subject: ALSA C++ API). Using bConfigurationValue=1 and measuring the actual rate with alsarate, I get >>> Testing playback Opening ALSA device hw:0,1 at 44100 Hz. Got 44100 Hz, 2 channels, period 1.02 ms. 96.27 seconds, measured rate 45807 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 44100 Hz. Got 44100 Hz, 2 channels, period 1.02 ms. 97.29 seconds, measured rate 45330 Hz. As expected, 44.1 kHz works. The measured rate seems a bit higher than it should be, but I assume that this is an alsarate inaccuracy rather than an actual phenomenon. >>> Testing playback Opening ALSA device hw:0,1 at 48000 Hz. Got 44100 Hz, 2 channels, period 1 ms. 96.27 seconds, measured rate 45808 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 48000 Hz. Got 48000 Hz, 2 channels, period 1 ms. 105.89 seconds, measured rate 45330 Hz. Using 48 kHz for playback is not possible, the snd_pcm_hw_params_rate_near returns a new rate of 44.1 kHz. This is all fine and the measured rate still is around 44.1 kHz as it should. In the capture part, we see the first problem: rate_near returned 48 kHz, but the measured value hasn't changed. So, the application thinks that it is recording at 48 kHz, but ALSA only gives it data at 44.1 kHz. This is a bug in ALSA. >>> Testing playback Opening ALSA device hw:0,1 at 8000 Hz. Got 44100 Hz, 2 channels, period 1.02 ms. 96.27 seconds, measured rate 45808 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 8000 Hz. Got 8000 Hz, 2 channels, period 2 ms. 17.66 seconds, measured rate 45309 Hz. Trying to use 8 kHz yields similar results to the 48 kHz test. No problems with playback, but the capture part reports that it is using 8 kHz, even though it really uses 44.1 kHz. >>> Testing playback Opening ALSA device hw:0,1 at 96000 Hz. Got 44100 Hz, 2 channels, period 1.02 ms. 96.27 seconds, measured rate 45808 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 96000 Hz. Got 48000 Hz, 2 channels, period 1 ms. 105.89 seconds, measured rate 45330 Hz. 96 kHz makes little difference. Now the capture rate is reported to be 48 kHz, but the actual rates are still always 44.1 kHz. That was all done using the default configuration. When using the other configuration, bConfigurationValue=2, the following results are gathered: >>> Testing playback Opening ALSA device hw:0,1 at 44100 Hz. Got 44100 Hz, 2 channels, period 1.02 ms. 96.27 seconds, measured rate 45808 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 44100 Hz. Got 44100 Hz, 2 channels, period 1.02 ms. 97.29 seconds, measured rate 45330 Hz. 44.1 kHz is identical to that in the other configuration. >>> Testing playback Opening ALSA device hw:0,1 at 48000 Hz. Got 48000 Hz, 2 channels, period 1 ms. 96.29 seconds, measured rate 49849 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 48000 Hz. Got 48000 Hz, 2 channels, period 1 ms. 97.29 seconds, measured rate 49339 Hz. 48 kHz now works properly for both playback and capture (note: measured rate over 49 kHz, but the measurements displaying about 1.5 kHz too high is consistent). >>> Testing playback Opening ALSA device hw:0,1 at 8000 Hz. Got 8000 Hz, 2 channels, period 2 ms. 15.89 seconds, measured rate 50336 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 8000 Hz. Got 8000 Hz, 2 channels, period 2 ms. 16.22 seconds, measured rate 49313 Hz. 8 kHz still doesn't work. ALSA reports that it does, but in reality gives 48 kHz (within the bounds of the measurement accuracy). >>> Testing playback Opening ALSA device hw:0,1 at 96000 Hz. Got 48000 Hz, 2 channels, period 1 ms. 96.29 seconds, measured rate 49849 Hz. >>> Testing capture Opening ALSA device hw:0,1 at 96000 Hz. Got 48000 Hz, 2 channels, period 1 ms. 97.29 seconds, measured rate 49339 Hz. 96 kHz works kinda like it should, except for the fact that the hardware should support that rate as well. Summa summarum: Config 1 only uses 44.1 kHz, but claims to support 8-48 kHz on capture. Config 2 only uses 44.1 and 48 kHz, but claims to support 8-48 kHz on both capture and playback. The card in reality, according to specs, supports up to 96 kHz. According to lspci (attached), it supports everything within the 8-96 kHz range. Bus 001 Device 010: ID 0763:2012 Midiman Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0763 Midiman idProduct 0x2012 bcdDevice 1.00 iManufacturer 1 M-Audio iProduct 2 FastTrack Pro iSerial 0 bNumConfigurations 2 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 326 bNumInterfaces 5 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 MaxPower 200mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 2 FastTrack Pro AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 75 bInCollection 4 baInterfaceNr( 0) 2 baInterfaceNr( 1) 3 baInterfaceNr( 2) 4 baInterfaceNr( 3) 1 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 5 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 6 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bSourceID 5 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 7 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 8 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bSourceID 7 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 1 iTerminal 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 3 MIDI Streaming bInterfaceProtocol 0 iInterface 2 FastTrack Pro MIDIStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 65 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 1 Embedded bJackID 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 2 External bJackID 2 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 1 Embedded bJackID 3 bNrInputPins 1 baSourceID( 0) 2 BaSourcePin( 0) 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 2 External bJackID 4 bNrInputPins 1 baSourceID( 0) 1 BaSourcePin( 0) 1 iJack 0 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 1 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 3 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 11 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 1 Discrete tSamFreq[ 0] 44100 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 11 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 1 Discrete tSamFreq[ 0] 44100 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 1165 bNumInterfaces 6 bConfigurationValue 2 iConfiguration 0 bmAttributes 0x80 MaxPower 200mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 2 FastTrack Pro AudioControl Interface Descriptor: bLength 13 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 97 bInCollection 5 baInterfaceNr( 0) 2 baInterfaceNr( 1) 3 baInterfaceNr( 2) 4 baInterfaceNr( 3) 5 baInterfaceNr( 4) 1 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 5 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 6 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bSourceID 5 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 7 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 8 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bSourceID 7 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 1 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0601 Analog Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 4 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 3 iTerminal 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 3 MIDI Streaming bInterfaceProtocol 0 iInterface 2 FastTrack Pro MIDIStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 65 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 1 Embedded bJackID 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 2 External bJackID 2 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 1 Embedded bJackID 3 bNrInputPins 1 baSourceID( 0) 2 BaSourcePin( 0) 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 2 External bJackID 4 bNrInputPins 1 baSourceID( 0) 1 BaSourcePin( 0) 1 iJack 0 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 1 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 3 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 20 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 4 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 tSamFreq[ 2] 88200 tSamFreq[ 3] 96000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0248 1x 584 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 4 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 131 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 6 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 5 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 131 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 6 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 6 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 5 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 96000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0248 1x 584 bytes bInterval 1 bRefresh 0 bSynchAddress 131 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 6 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 20 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 4 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 tSamFreq[ 2] 88200 tSamFreq[ 3] 96000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0248 1x 584 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 4 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 132 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 6 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 5 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 132 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 6 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 6 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 96000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0248 1x 584 bytes bInterval 1 bRefresh 0 bSynchAddress 132 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 1 bRefresh 6 bSynchAddress 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 7 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 8193 IEC1937_AC-3 AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 3 (FORMAT_TYPE_III) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 96000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0248 1x 584 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0128 1x 296 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 0 Continuous tLowerSamFreq 8000 tUpperSamFreq 96000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0248 1x 584 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Bus 001 Device 006: ID 041e:4058 Creative Technology, Ltd Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 Common Class bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 idVendor 0x041e Creative Technology, Ltd idProduct 0x4058 bcdDevice 1.00 iManufacturer 1 Creative Labs iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 1073 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 MaxPower 500mA UNRECOGNIZED: 08 0b 00 02 0e 03 00 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 1 Video Control bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x000a 1x 10 bytes bInterval 5 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0080 1x 128 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0400 1x 0 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 4 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0b00 2x 768 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 5 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0c00 2x 0 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 6 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x1380 3x 896 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 7 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x1400 3x 0 bytes bInterval 1 UNRECOGNIZED: 08 0b 02 02 01 02 00 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 40 bInCollection 1 baInterfaceNr( 0) 3 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0602 Digital Audio Interface bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 2 bSourceID 1 bControlSize 1 bmaControls( 0) 0x00 bmaControls( 1) 0x43 Mute Volume Automatic Gain bmaControls( 2) 0x43 Mute Volume Automatic Gain iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 2 iTerminal 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 3 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 35 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 9 Discrete tSamFreq[ 0] 8000 tSamFreq[ 1] 11025 tSamFreq[ 2] 12000 tSamFreq[ 3] 16000 tSamFreq[ 4] 22050 tSamFreq[ 5] 24000 tSamFreq[ 6] 32000 tSamFreq[ 7] 44100 tSamFreq[ 8] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x00c4 1x 196 bytes bInterval 4 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 Common Class bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 bNumConfigurations 1 Bus 001 Device 004: ID 1532:0101 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x1532 idProduct 0x0101 bcdDevice 21.00 iManufacturer 1 Razer iProduct 2 Razer Copperhead Laser Mouse iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 59 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 Remote Wakeup MaxPower 200mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Devices bInterfaceSubClass 0 No Subclass bInterfaceProtocol 2 Mouse iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 10.01 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 73 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 8 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Devices bInterfaceSubClass 1 Boot Interface Subclass bInterfaceProtocol 1 Keyboard iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 10.01 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 47 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 8

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Re: [alsa-devel] Pls don't require exclusive Alsa audio device access, use snd_pcm_dmix_open ()
by thomas schorpp 28 Nov '07

28 Nov '07

thomas schorpp wrote: > thomas schorpp wrote: >> since dmix is enabled by libasound2 by default for cards not >> supporting h/w mixing. >> >> skype can access the audio device using snd_pcm_dmix_open () if other >> app has already opened it, ekiga throws error msgboxes. skype 5089 skype mem CHR 116,24 7792 /dev/snd/pcmC0D0c skype 5089 skype mem CHR 116,16 7784 /dev/snd/pcmC0D0p kio_file 5422 schorpp 0r CHR 1,3 956 /dev/null kio_uiser 6025 schorpp 0r CHR 1,3 956 /dev/null iceape-bi 30161 schorpp mem CHR 116,16 7784 /dev/snd/pcmC0D0p iceape-bi 30161 schorpp 0r CHR 1,3 956 /dev/null iceape-bi 30161 schorpp 66r CHR 116,33 7473 /dev/snd/timer iceape-bi 30161 schorpp 67u CHR 116,16 7784 /dev/snd/pcmC0D0p >> >> y >> tom >> > > hmm. takeback. future removal warning in alsa lib doc. well for > experiments (in ptlib plugin): > > Index: sound_alsa.cxx > =================================================================== > --- sound_alsa.cxx (Revision 18763) > +++ sound_alsa.cxx (Arbeitskopie) > @@ -344,13 +344,15 @@ > } > } > > - if (snd_pcm_open (&os_handle, real_device_name, stream, > SND_PCM_NONBLOCK) < 0) { > + if (snd_pcm_open (&os_handle, real_device_name, stream, > SND_PCM_NONBLOCK) < 0) > > - PTRACE (1, "ALSA\tOpen Failed"); > - return FALSE; > - } > - else > - snd_pcm_nonblock (os_handle, 0); > + if (_snd_pcm_dmix_open (&os_handle, real_device_name, snd_config_t* > root, snd_config_t* sconf, stream, SND_PCM_NONBLOCK) < 0) { > + > + PTRACE (1, "ALSA\tOpen Failed"); > + return FALSE; > + } > + else > + snd_pcm_nonblock (os_handle, 0); > > /* save internal parameters */ > device = real_device_name; > > i cant find any sample code for the missing params, google is full of > alsa user issues ;) > > y > tom > @alsa devs any hints?

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[alsa-devel] [PATCH 2/2] sis7019: add support for pre-2.6 kernels
by Dave Dillow 28 Nov '07

28 Nov '07

The sis7019 driver uses __ffs(), which is available in 2.6 kernels, but not in most earlier ones. This patches the driver to use a local version assembly version, as the hardware is SiS 55x only (i486/Pentium-ish). Signed-off-by: David Dillow <dave(a)thedillows.org> --- This is against the alsa-driver hg repo. I've not build tested this version, as the build system currently hates me. However, this is 95% identical to what I was using against 1.0.13. Only the location of the __ffs -> sis_ffs change is different. pci/sis7019.patch | 32 ++++++++++++++++++++++++++++++++ pci/Makefile | 3 ++- 2 files changed, 34 insertions(+), 1 deletion(-) diff -r ab42d23439ef pci/Makefile --- a/pci/Makefile Tue Nov 27 16:05:25 2007 +0100 +++ b/pci/Makefile Wed Nov 28 01:39:04 2007 -0500 @@ -10,7 +10,7 @@ include $(SND_TOPDIR)/Makefile.conf # clean-files := ad1889.c atiixp.c atiixp_modem.c bt87x.c cmipci.c ens1370.c \ - fm801.c intel8x0.c maestro3.c via82xx.c via82xx_modem.c + fm801.c intel8x0.c maestro3.c sis7019.c via82xx.c via82xx_modem.c obj-$(CONFIG_SND) += pdplus/ asihpi/ oxygen/ @@ -31,5 +31,6 @@ fm801.c: fm801.patch $(SND_TOPDIR)/alsa- fm801.c: fm801.patch $(SND_TOPDIR)/alsa-kernel/pci/fm801.c intel8x0.c: intel8x0.patch $(SND_TOPDIR)/alsa-kernel/pci/intel8x0.c maestro3.c: maestro3.patch $(SND_TOPDIR)/alsa-kernel/pci/maestro3.c +sis7019.c: sis7019.patch $(SND_TOPDIR)/alsa-kernel/pci/sis7019.c via82xx.c: via82xx.patch $(SND_TOPDIR)/alsa-kernel/pci/via82xx.c via82xx_modem.c: via82xx_modem.patch $(SND_TOPDIR)/alsa-kernel/pci/via82xx_modem.c diff -r ab42d23439ef pci/sis7019.patch --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/pci/sis7019.patch Wed Nov 28 01:39:04 2007 -0500 @@ -0,0 +1,32 @@ +--- ../alsa-kernel/pci/sis7019.c 2007-11-28 01:02:26.000000000 -0500 ++++ sis7019.c 2007-11-28 01:36:27.000000000 -0500 +@@ -33,6 +33,14 @@ + #include <sound/initval.h> + #include "sis7019.h" + ++static inline unsigned long sis_ffs(unsigned long word) ++{ ++ __asm__("bsfl %1,%0" ++ :"=r" (word) ++ :"rm" (word)); ++ return word; ++} ++ + MODULE_AUTHOR("David Dillow <dave(a)thedillows.org>"); + MODULE_DESCRIPTION("SiS 7019"); + MODULE_LICENSE("GPL"); +@@ -289,7 +297,7 @@ + int bit; + + while (status) { +- bit = __ffs(status); ++ bit = sis_ffs(status); + status >>= bit + 1; + voice += bit; + sis_update_voice(voice); +@@ -1464,3 +1472,5 @@ + + module_init(sis7019_init); + module_exit(sis7019_exit); ++ ++EXPORT_NO_SYMBOLS

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