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[alsa-devel] Migrating old application using ALSA v0.5.0 to use current ALSA v1.0.15
by Shaun Shirey 28 Jan '08

28 Jan '08

Good Afternoon, I am currently working on migrating an old application using an older version of ALSA v0.5.0 to a newer version v1.0.15. I have noticed that many functions have been removed entirely and the library itself has been completely re-structured. The problem is that I can't seem to find any documentation on the older library (the program also has little to no comments). I was wondering if anyone has any links to documentation or advice on porting ? Any help would be greatly appreciated.

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[alsa-devel] Archive alsa versions
by Alan Horstmann 28 Jan '08

28 Jan '08

Are historic versions of ALSA available anywhere? I have been unable to locate any. It might be useful for me tracking down a bug to see the source code for alsa-driver-1.0.1 !! Alan

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[alsa-devel] [REPOST] cs4231-lib: add support for Opti93x codec
by Krzysztof Helt 28 Jan '08

28 Jan '08

From: Krzysztof Helt <krzysztof.h1(a)wp.pl> This patch adds support for WSS compatible Opti93x codec to the cs4231-lib. Signed-off-by: Krzysztof Helt <krzysztof.h1(a)wp.pl> --- This is the patch against the current alsa hg tree (which is the same as 2.6.24-rc8-mm1 kernel regarding files affected by the patch). It should apply to older kernels (2.6.24 final or -rcX) but not cleanly (shift by one line). diff -urp linux-mm-ref/include/sound/cs4231-regs.h linux-mm/include/sound/cs4231-regs.h --- linux-mm-ref/include/sound/cs4231-regs.h 2008-01-26 08:18:04.000000000 +0100 +++ linux-mm/include/sound/cs4231-regs.h 2008-01-26 08:45:44.312453695 +0100 @@ -177,4 +177,12 @@ #define CS4236_RIGHT_WAVE 0x1c /* right wavetable serial port volume */ #define CS4236_VERSION 0x9c /* chip version and ID */ +/* definitions for extended registers - OPTI93X */ +#define OPTi931_AUX_LEFT_INPUT 0x10 +#define OPTi931_AUX_RIGHT_INPUT 0x11 +#define OPTi93X_MIC_LEFT_INPUT 0x14 +#define OPTi93X_MIC_RIGHT_INPUT 0x15 +#define OPTi93X_OUT_LEFT 0x16 +#define OPTi93X_OUT_RIGHT 0x17 + #endif /* __SOUND_CS4231_REGS_H */ diff -urp linux-mm-ref/include/sound/cs4231.h linux-mm/include/sound/cs4231.h --- linux-mm-ref/include/sound/cs4231.h 2008-01-26 08:18:04.000000000 +0100 +++ linux-mm/include/sound/cs4231.h 2008-01-26 08:49:44.157843596 +0100 @@ -58,6 +58,7 @@ /* compatible, but clones */ #define CS4231_HW_INTERWAVE 0x1000 /* InterWave chip */ #define CS4231_HW_OPL3SA2 0x1101 /* OPL3-SA2 chip, similar to cs4231 */ +#define CS4231_HW_OPTI93X 0x1102 /* Opti 930/931/933 */ /* defines for codec.hwshare */ #define CS4231_HWSHARE_IRQ (1<<0) @@ -120,6 +121,8 @@ unsigned char snd_cs4236_ext_in(struct s void snd_cs4231_mce_up(struct snd_cs4231 *chip); void snd_cs4231_mce_down(struct snd_cs4231 *chip); +void snd_cs4231_overrange(struct snd_cs4231 *chip); + irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id); const char *snd_cs4231_chip_id(struct snd_cs4231 *chip); diff -urp linux-mm-ref/sound/isa/cs423x/cs4231_lib.c linux-mm/sound/isa/cs423x/cs4231_lib.c --- linux-mm-ref/sound/isa/cs423x/cs4231_lib.c 2008-01-26 08:18:04.000000000 +0100 +++ linux-mm/sound/isa/cs423x/cs4231_lib.c 2008-01-26 08:45:44.324456487 +0100 @@ -119,6 +119,42 @@ static unsigned char snd_cs4231_original 0x00, /* 1f/31 - cbrl */ }; +static unsigned char snd_opti93x_original_image[32] = +{ + 0x00, /* 00/00 - l_mixout_outctrl */ + 0x00, /* 01/01 - r_mixout_outctrl */ + 0x88, /* 02/02 - l_cd_inctrl */ + 0x88, /* 03/03 - r_cd_inctrl */ + 0x88, /* 04/04 - l_a1/fm_inctrl */ + 0x88, /* 05/05 - r_a1/fm_inctrl */ + 0x80, /* 06/06 - l_dac_inctrl */ + 0x80, /* 07/07 - r_dac_inctrl */ + 0x00, /* 08/08 - ply_dataform_reg */ + 0x00, /* 09/09 - if_conf */ + 0x00, /* 0a/10 - pin_ctrl */ + 0x00, /* 0b/11 - err_init_reg */ + 0x0a, /* 0c/12 - id_reg */ + 0x00, /* 0d/13 - reserved */ + 0x00, /* 0e/14 - ply_upcount_reg */ + 0x00, /* 0f/15 - ply_lowcount_reg */ + 0x88, /* 10/16 - reserved/l_a1_inctrl */ + 0x88, /* 11/17 - reserved/r_a1_inctrl */ + 0x88, /* 12/18 - l_line_inctrl */ + 0x88, /* 13/19 - r_line_inctrl */ + 0x88, /* 14/20 - l_mic_inctrl */ + 0x88, /* 15/21 - r_mic_inctrl */ + 0x80, /* 16/22 - l_out_outctrl */ + 0x80, /* 17/23 - r_out_outctrl */ + 0x00, /* 18/24 - reserved */ + 0x00, /* 19/25 - reserved */ + 0x00, /* 1a/26 - reserved */ + 0x00, /* 1b/27 - reserved */ + 0x00, /* 1c/28 - cap_dataform_reg */ + 0x00, /* 1d/29 - reserved */ + 0x00, /* 1e/30 - cap_upcount_reg */ + 0x00 /* 1f/31 - cap_lowcount_reg */ +}; + /* * Basic I/O functions */ @@ -895,7 +931,7 @@ static int snd_cs4231_capture_prepare(st return 0; } -static void snd_cs4231_overrange(struct snd_cs4231 *chip) +void snd_cs4231_overrange(struct snd_cs4231 *chip) { unsigned long flags; unsigned char res; @@ -1054,8 +1090,11 @@ static int snd_cs4231_probe(struct snd_c chip->image[CS4231_IFACE_CTRL] = (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) | (chip->single_dma ? CS4231_SINGLE_DMA : 0); - chip->image[CS4231_ALT_FEATURE_1] = 0x80; - chip->image[CS4231_ALT_FEATURE_2] = chip->hardware == CS4231_HW_INTERWAVE ? 0xc2 : 0x01; + if (chip->hardware != CS4231_HW_OPTI93X) { + chip->image[CS4231_ALT_FEATURE_1] = 0x80; + chip->image[CS4231_ALT_FEATURE_2] = + chip->hardware == CS4231_HW_INTERWAVE ? 0xc2 : 0x01; + } ptr = (unsigned char *) &chip->image; snd_cs4231_mce_down(chip); spin_lock_irqsave(&chip->reg_lock, flags); @@ -1376,6 +1415,7 @@ const char *snd_cs4231_chip_id(struct sn case CS4231_HW_INTERWAVE: return "AMD InterWave"; case CS4231_HW_OPL3SA2: return chip->card->shortname; case CS4231_HW_AD1845: return "AD1845"; + case CS4231_HW_OPTI93X: return "OPTi 93x"; default: return "???"; } } @@ -1401,7 +1441,12 @@ static int snd_cs4231_new(struct snd_car chip->rate_constraint = snd_cs4231_xrate; chip->set_playback_format = snd_cs4231_playback_format; chip->set_capture_format = snd_cs4231_capture_format; - memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image)); + if (chip->hardware == CS4231_HW_OPTI93X) + memcpy(&chip->image, &snd_opti93x_original_image, + sizeof(snd_opti93x_original_image)); + else + memcpy(&chip->image, &snd_cs4231_original_image, + sizeof(snd_cs4231_original_image)); *rchip = chip; return 0; @@ -1790,6 +1835,32 @@ CS4231_SINGLE("Loopback Capture Switch", CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1) }; +static struct snd_kcontrol_new snd_opti93x_controls[] __devinitdata = { +CS4231_DOUBLE("Master Playback Switch", 0, OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1), +CS4231_DOUBLE("Master Playback Volume", 0, OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 1, 1, 31, 1), +CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1), +CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 31, 1), +CS4231_DOUBLE("FM Playback Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1), +CS4231_DOUBLE("FM Playback Volume", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 1, 1, 15, 1), +CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1), +CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 15, 1), +CS4231_DOUBLE("Mic Playback Switch", 0, OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 7, 7, 1, 1), +CS4231_DOUBLE("Mic Playback Volume", 0, OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 1, 1, 15, 1), +CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0), +CS4231_DOUBLE("CD Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1), +CS4231_DOUBLE("CD Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 1, 1, 15, 1), +CS4231_DOUBLE("Aux Playback Switch", 0, OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 7, 7, 1, 1), +CS4231_DOUBLE("Aux Playback Volume", 0, OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 1, 1, 15, 1), +CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0), +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Capture Source", + .info = snd_cs4231_info_mux, + .get = snd_cs4231_get_mux, + .put = snd_cs4231_put_mux, +} +}; + int snd_cs4231_mixer(struct snd_cs4231 *chip) { struct snd_card *card; @@ -1802,10 +1873,22 @@ int snd_cs4231_mixer(struct snd_cs4231 * strcpy(card->mixername, chip->pcm->name); - for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) { - if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4231_controls[idx], chip))) < 0) - return err; - } + if (chip->hardware == CS4231_HW_OPTI93X) + for (idx = 0; idx < ARRAY_SIZE(snd_opti93x_controls); idx++) { + err = snd_ctl_add(card, + snd_ctl_new1(&snd_opti93x_controls[idx], + chip)); + if (err < 0) + return err; + } + else + for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) { + err = snd_ctl_add(card, + snd_ctl_new1(&snd_cs4231_controls[idx], + chip)); + if (err < 0) + return err; + } return 0; } @@ -1815,6 +1898,7 @@ EXPORT_SYMBOL(snd_cs4236_ext_out); EXPORT_SYMBOL(snd_cs4236_ext_in); EXPORT_SYMBOL(snd_cs4231_mce_up); EXPORT_SYMBOL(snd_cs4231_mce_down); +EXPORT_SYMBOL(snd_cs4231_overrange); EXPORT_SYMBOL(snd_cs4231_interrupt); EXPORT_SYMBOL(snd_cs4231_chip_id); EXPORT_SYMBOL(snd_cs4231_create); ---------------------------------------------------------------------- Lezac w wannie skorzystala z ... 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[alsa-devel] [PATCH] replace logical- by bit-and in alc_subsystem_id(), sound/pci/hda/patch_realtek.c
by Roel Kluin 28 Jan '08

28 Jan '08

This was found in linus' git tree, am I right here? -- replace logical- by bit-and Signed-off-by: Roel Kluin <12o3l(a)tiscali.nl> --- diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 1c50278..0a13c53 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -739,7 +739,7 @@ static void alc_subsystem_id(struct hda_codec *codec, /* check sum */ tmp = 0; for (i = 1; i < 16; i++) { - if ((ass >> i) && 1) + if ((ass >> i) & 1) tmp++; } if (((ass >> 16) & 0xf) != tmp)

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[alsa-devel] A Weird issue on Gigabyte board
by Jiang zhe 28 Jan '08

28 Jan '08

Hi, I meet with a weird issue. Please refer to the bug 0003674 on bugtrack.alsa-project.org. It use alc889 codec but the codec vendor id is 0885. With the alsa-driver-hg20080110.tar.bz2, it works well with option "model=6stack-dig". But after I simply added the this line into the alc882_cfg_tbl[]: SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P35-DS3R", ALC882_6ST_DIG), The dmesg still show "hda_codec: Unknown model for ALC882, trying auto-probe from BIOS...". and driver will crash. With this patch, even loading it with option "model=6stack-dig" doesn't help, driver will still crash. I found a line in the dmesg: "hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0xbe0f0009." The Cad is 0xb. The codec_mask can change from 0x4 to 0x1: alsa-kernel/pci/hda/hda_intel.c:732: codec_mask = 0x4 alsa-kernel/pci/hda/hda_intel.c:732: codec_mask = 0x1 The os is kubuntu,kernel version is 2.6.22-14. Here is some dmesg info: [ 36.934143] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/../../alsa-kernel/pci/hda/hda_intel.c:732: codec_mask = 0x4 [ 36.935975] hda-codec: In the pacth_alc882,board_config is -1 [ 36.935976] hda_codec: Unknown model for ALC882, trying auto-probe from BIOS... [ 36.936469] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/hda_codec.c:2794: autoconfig: line_outs=4 (0x14/0x15/0x16/0x17/0x0) [ 36.936471] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/hda_codec.c:2798: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 36.936473] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/hda_codec.c:2802: hp_outs=1 (0x1b/0x0/0x0/0x0/0x0) [ 36.936476] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/hda_codec.c:2810: inputs: mic=0x18, fmic=0x19, line=0x1a, fline=0x0, cd=0x0, aux=0x0 [ 37.935491] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/../../alsa-kernel/pci/hda/hda_intel.c:581: hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0xe1cf0009 [ 38.936857] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/../../alsa-kernel/pci/hda/hda_intel.c:588: hda_intel: azx_get_response timeout, switching to single_cmd mode: last cmd=0xe1cf0009 [ 38.936937] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/../../alsa-kernel/pci/hda/hda_intel.c:644: hda-intel: get_response timeout: IRS=0x1 [ 38.936940] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/hda_codec.c:2065: BUG? (info->nid) [ 38.936946] [<f8c19bc0>] snd_hda_build_pcms+0x1e0/0x220 [snd_hda_intel] [ 38.936962] [<f8c1598c>] azx_probe+0x71c/0xa50 [snd_hda_intel] [ 38.936974] [<f8c14850>] azx_send_cmd+0x0/0x130 [snd_hda_intel] [ 38.936981] [<f8c14980>] azx_get_response+0x0/0x200 [snd_hda_intel] [ 38.936991] [<f8c146c0>] azx_power_notify+0x0/0x70 [snd_hda_intel] [ 38.937002] [<c0209a66>] pci_device_probe+0x56/0x80 [ 38.937008] [<c026110e>] driver_probe_device+0x8e/0x190 [ 38.937013] [<c026137e>] __driver_attach+0x9e/0xa0 [ 38.937017] [<c02604fb>] bus_for_each_dev+0x3b/0x60 [ 38.937022] [<c0260f86>] driver_attach+0x16/0x20 [ 38.937024] [<c02612e0>] __driver_attach+0x0/0xa0 [ 38.937026] [<c02608ca>] bus_add_driver+0x8a/0x1b0 [ 38.937031] [<c0209c13>] __pci_register_driver+0x53/0xa0 [ 38.937035] [<c014a7d1>] sys_init_module+0x151/0x1a00 [ 38.937038] [<c01fb39f>] prio_tree_insert+0x1f/0x250 [ 38.937052] [<c01041d2>] sysenter_past_esp+0x6b/0xa9 [ 38.937058] ======================= [ 38.937097] ACPI: PCI interrupt for device 0000:00:1b.0 disabled [ 38.937102] HDA Intel: probe of 0000:00:1b.0 failed with error -22 [ 38.937124] ACPI: PCI Interrupt 0000:01:00.1[B] -> GSI 17 (level, low) -> IRQ 23 [ 38.937134] PCI: Setting latency timer of device 0000:01:00.1 to 64 [ 38.952813] ALSA /home/matt/Data/alsa-driver-hg20080110/pci/hda/../../alsa-kernel/pci/hda/hda_intel.c:732: codec_mask = 0x1

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[alsa-devel] a7839e96 (PNP: increase max resources) breaks my ALSA intel8x0 sound card
by Avuton Olrich 28 Jan '08

28 Jan '08

With v2.6.24 my second ALSA sound device stopped working. After bisection it says this was the offending commit. a7839e960675b549f06209d18283d5cee2ce9261 is first bad commit commit a7839e960675b549f06209d18283d5cee2ce9261 Author: Zhao Yakui <yakui.zhao(a)intel.com> Date: Wed Nov 28 16:21:21 2007 -0800 PNP: increase the maximum number of resources On some systems the number of resources(IO,MEM) returnedy by PNP device is greater than the PNP constant, for example motherboard devices. It brings that some resources can't be reserved and resource confilicts. This will cause PCI resources are assigned wrongly in some systems, and cause hang. This is a regression since we deleted ACPI motherboard driver and use PNP system driver. [akpm(a)linux-foundation.org: fix text and coding-style a bit] Signed-off-by: Li Shaohua <shaohua.li(a)intel.com> Signed-off-by: Zhao Yakui <yakui.zhao(a)intel.com> Cc: Bjorn Helgaas <bjorn.helgaas(a)hp.com> Cc: Thomas Renninger <trenn(a)suse.de> Cc: <stable(a)kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> The audio device is 00:1b.0 (see my lspci -vvv output), the other audio device works fine. http://avuton.googlepages.com/v2.6-before (dmesg revision before) http://avuton.googlepages.com/v2.6-after (dmesg broken revision) http://avuton.googlepages.com/lspci-vvv http://avuton.googlepages.com/config (from the broken revision) http://avuton.googlepages.com/iomem http://avuton.googlepages.com/ioports -- avuton -- Anyone who quotes me in their sig is an idiot. -- Rusty Russell.

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[alsa-devel] Broken seq
by Alan Horstmann 27 Jan '08

27 Jan '08

Can someone help with this... During repeated testing of MIDI, something has broken the seq system, so when loading previously working sound drivers, I get a message: /proc/asound/seq/clients File not found (or similar) and sure enough it is not there. Why has it gone and how can I get it back? Thanks Alan

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[alsa-devel] installation steps for us-122l tascam driver
by Xavier garabedian 27 Jan '08

27 Jan '08

hello i'm a linux beginner and i'm trying to make the us 122l work on ubuntu. i have seen the patches that you published, but i don't know the steps to install them and make the tascam work. is there anyone who can discribe me the process, step by step ? thank you very much in advance best regards xavier garabedian

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[alsa-devel] Intel HDA (ICH8) unsupported model?
by Philipp E. Letschert 27 Jan '08

27 Jan '08

Hello, This is for the Zepto Znote 6224W Notebook (and probably others): lspci -v 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) Subsystem: Inventec Corporation Unknown device 0040 Flags: bus master, fast devsel, latency 0, IRQ 22 Memory at f0500000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- Capabilities: [70] Express Unknown type IRQ 0 Capabilities: [100] Virtual Channel Capabilities: [130] Unknown (5) lspci -vvn 00:1b.0 0403: 8086:284b (rev 03) Subsystem: 1170:0040 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 22 Region 0: Memory at f0500000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- Address: 0000000000000000 Data: 0000 Capabilities: [70] Express Unknown type IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <64ns, L1 <1us Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 128 bytes Link: Supported Speed unknown, Width x0, ASPM unknown, Port 0 Link: Latency L0s <64ns, L1 <1us Link: ASPM Disabled CommClk- ExtSynch- Link: Speed unknown, Width x0 Capabilities: [100] Virtual Channel Capabilities: [130] Unknown (5) Enabling sound caused some headaches. I finally ended with kernel 2.6.24 and alsa 1.0.16rc1. The card was autodetected as Realtec ALC268, but no sound output. Using option model=toshiba instead, when loading the snd-hda-intel module did work, but sound has a really poor quality, with lots of crackling noises. Enabling the samplerate plugin didnt help... Please let me know, if this card is already supported and I just have errors in my configuration, or further informations are helpful for develepment. Thanks, Phil

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[alsa-devel] Usb driver correction
by LCID Fire 27 Jan '08

27 Jan '08

Hi. I hope you guys can help me with 3 problems I have. I have a usb device which has 3 streams - which all work fine (that's not the problem yet ;)). Aside from this there is also a mixer created. Alsa cannot retrieve any information from the mixer - not the minimum, nor the maximum or current value. Basicly alsa leaves the mixer in a state where it cannot be used - which leads to a question why not omnit the mixer? What I am ending up with are these 2 volumes: [4] FU [PCM Capture Volume] ch = 1, val = 0/1/1 [9] FU [PCM Capture Volume] ch = 1, val = 0/1/1 What would I have to do to disable these? Is it enough to define a usbmix_name_map in usbmixer_maps.c with {4, NULL} and {9, NULL}? Also, the usb device has a switch - from line input to phono input. I know what control message I have to send to change the switch - but where has such an additional switch to be implemented? Is it similar to snd_audigy2nx_led_get in usbmixer.c? Would be great if someone could explain these mysteries to me ;)

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