At Mon, 24 Dec 2007 23:29:52 -0300, Salatiel Filho wrote:

On 12/17/07, Takashi Iwai tiwai@suse.de wrote:

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At Wed, 12 Dec 2007 21:45:26 -0300, Salatiel Filho wrote:

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*** please let me in the to or cc fields. I am not on the list ***

I am having a big trouble to make sound work on my ARM machine. I am running debian 4.

# uname -a Linux LS-GL7D6 2.6.16.57-arm2 #7 Wed Dec 12 18:14:51 BRT 2007 armv5tejl GNU/Linux

# cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.15. Compiled on Dec 12 2007 for kernel 2.6.16.57-arm2.

Modules load successfully

# lsmod Module Size Used by snd_pcm_oss 47680 0 snd_mixer_oss 15040 1 snd_pcm_oss snd_usb_audio 79904 0 snd_pcm 75877 2 snd_pcm_oss,snd_usb_audio snd_timer 20164 1 snd_pcm snd_page_alloc 8264 1 snd_pcm snd_usb_lib 15808 1 snd_usb_audio snd_rawmidi 21376 1 snd_usb_lib snd_seq_device 7116 1 snd_rawmidi snd_hwdep 7460 1 snd_usb_audio snd 54368 9 snd_pcm_oss,snd_mixer_oss,snd_usb_audio,snd_pcm,snd_timer,snd_usb_lib,snd_rawmidi,snd_seq_device,snd_hwdep soundcore 7684 1 snd nfs 102044 0 lockd 61780 1 nfs sunrpc 142808 3 nfs,lockd dm_mod 48176 0 usbhid 38628 0

# cat /proc/asound/cards 0 [default ]: USB-Audio - C-Media USB Headphone Set C-Media USB Headphone Set at usb-ehci_platform.4523-1, full speed

# cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.15. Compiled on Dec 12 2007 for kernel 2.6.16.57-arm2.

but everytime i try to use alsamixer i get:

# alsamixer alsamixer: function snd_mixer_load failed: Inappropriate ioctl for device

# aplay test.wav Playing WAVE 'test.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono aplay: xrun:1090: read/write error, state = PREPARED

# strace alsamixer ... stat64("/usr//share/alsa/alsa.conf", {st_mode=S_IFREG|0644, st_size=8611, ...}) = 0 open("/usr//share/alsa/alsa.conf", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=8611, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40017000 read(3, "#\n# ALSA library configuration "..., 4096) = 4096 read(3, "r\n\t\t\t\tname defaults.pcm.device\n\t"..., 4096) = 4096 read(3, "{\n\t\t\t@func refer\n\t\t\tname default"..., 4096) = 419 read(3, "", 4096) = 0 read(3, "", 4096) = 0 close(3) = 0 munmap(0x40017000, 4096) = 0 access("/etc/asound.conf", R_OK) = -1 ENOENT (No such file or directory) access("/root/.asoundrc", R_OK) = -1 ENOENT (No such file or directory) open("/dev/snd/controlC0", O_RDONLY) = 3 close(3) = 0 open("/dev/snd/controlC0", O_RDWR) = 3 ioctl(3, USBDEVFS_CONTROL, 0xbec2da64) = 0 ioctl(3, UI_DEV_CREATE, 0xbec2db2c) = 0 close(3) = 0 stat64("/usr//share/alsa/alsa.conf", {st_mode=S_IFREG|0644, st_size=8611, ...}) = 0 open("/dev/snd/controlC0", O_RDONLY) = 3 close(3) = 0 open("/dev/snd/controlC0", O_RDWR) = 3 ioctl(3, USBDEVFS_CONTROL, 0xbec2da44) = 0 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 ioctl(3, USBDEVFS_RELEASEINTERFACE, 0xbec2dac0) = 0 ioctl(3, USBDEVFS_RELEASEINTERFACE, 0xbec2dac0) = 0 ioctl(3, USBDEVFS_CONNECTINFO, 0xbec2d86c) = 0 ioctl(3, USBDEVFS_IOCTL, 0xbec2d42c) = -1 ENOTTY (Inappropriate ioctl for device) fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40017000 write(1, "\n", 1 ) = 1 write(2, "alsamixer: function snd_mixer_lo"..., 74alsamixer: function snd_mixer_load failed: Inappropriate ioctl for device ) = 74 munmap(0x40017000, 4096) = 0 io_submit(0x2, 0, 0x8 <unfinished ... exit status 2>

any help?

The same card works ok on my x86 machine using . So the problem is not the card but something else.

Likely the difference of struct size due to different compiler or compiler options.

Takashi

I have compiled kernel/alsa drivers/alsa mixer using the same compiler on the same machine.

Hm, but the strace indicates something like the struct size mismatch. Try to build with --with-debug=detect option and see the kernel message.

Takashi