April 2013 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] M-Audio Delta 1010LT: S/PDIF clock source not working
by Jonas Petersen 15 Apr '13

15 Apr '13

Hi, I am trying to capture from S/PDIF. I get a signal but the clocking is broken somehow. I have 'Multi Track Internal Clock' on 'ICE958 Input'. 'Word Clock Status' and 'Word Clock Sync' are 'Off'. What happens is the following: It captures what comes in on S/PDIF but it seems it will always use the internal clock with the setting from 'Multi Track Internal Clock Default'. So even though 'Multi Track Internal Clock' is on 'ICE958 Input', the setting of 'Multi Track Internal Clock Default' will clock the signal. A 1 kHz sine wave at 48 kHz samplerate captured with 'Multi Track Internal Clock Default' on 96 kHz will result in a 2 kHz sine. When the sample frequency rates are matched, it will capture at correct rate but with hiccups due to the rates not perfectly aligned. What can I do narrow down the cause? Reards Jonas

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[alsa-devel] USB Quirks for Boss JS-8
by Keith A. Milner 15 Apr '13

15 Apr '13

Hi, I'm looking at developing a quirk for the Boss JS-8. The lsusb is as follows: Bus 001 Device 003: ID 0582:0109 Roland Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x0582 Roland Corp. idProduct 0x0109 bcdDevice 0.01 iManufacturer 1 BOSS iProduct 2 JS-8 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 167 bNumInterfaces 3 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 2 iInterface 0 ** UNRECOGNIZED: 06 24 f1 01 00 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 2 iInterface 0 ** UNRECOGNIZED: 07 24 01 01 00 01 00 ** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0070 1x 112 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 1 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 1 iInterface 0 ** UNRECOGNIZED: 07 24 01 07 00 01 00 ** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0070 1x 112 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 3 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 06 24 f1 02 02 02 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 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 0x0200 1x 512 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 3 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 8 Mass Storage bDeviceSubClass 6 SCSI bDeviceProtocol 80 Bulk (Zip) bMaxPacketSize0 64 bNumConfigurations 0 Device Status: 0x0001 Self Powered I wasn't entirely sure about the quirk syntax as the two interfaces are at EP 4 and EP5. Does this mean I need to ignore the (non-existant) lower interfaces? Here's what I came up with: { /* Boss JS-8 Jam Station */ USB_DEVICE(0x0582, 0x0109), .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { /* .vendor_name = "BOSS", */ /* .product_name = "JS-8", */ .ifnum = QUIRK_ANY_INTERFACE, .type = QUIRK_COMPOSITE, .data = (const struct snd_usb_audio_quirk[]) { { .ifnum = 0, .type = QUIRK_IGNORE_INTERFACE }, { .ifnum = 1, .type = QUIRK_IGNORE_INTERFACE }, { .ifnum = 2, .type = QUIRK_IGNORE_INTERFACE }, { .ifnum = 3, .type = QUIRK_IGNORE_INTERFACE }, { .ifnum = 4, .type = QUIRK_AUDIO_STANDARD_INTERFACE }, { .ifnum = 5, .type = QUIRK_AUDIO_STANDARD_INTERFACE }, { .ifnum = -1 } } } }, regards, -- Keith A. Milner

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[alsa-devel] alsa-project.org access, I want to tackle building an eClaro driver
by TJ Olaes 13 Apr '13

13 Apr '13

Hello. I hate to post to this mailing list regarding access to the alsa-project.org wiki, but I've gone through the site and can't, for the life of me, seem to find an admin email or something like it on the wiki. I'm trying to sign up to the wiki and am having trouble with the Captcha. I put in different version numbers of linux kernels but all my attempts to register seem to be thwarted because I'm not putting in the correct info. I have no idea what I'm doing wrong. What I'm really trying to do is get involved in alsa driver development... I think this would be an appropriate place for me to attempt to address my issue, which is the lack of an HT Omega eClaro card driver. I really, really want to contribute but it seems I'm being thwarted by the developer website. If I could get contact info for an admin or something, I would go bug them, but it seems that info isn't posted on the wiki. Sorry to bug y'all. Thanks. -TJ

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Re: [alsa-devel] [PATCH] alsa/usb: Add quirk for 192KHz recording on E-Mu devices
by Takashi Iwai 13 Apr '13

13 Apr '13

At Fri, 12 Apr 2013 22:33:59 -0500, Calvin Owens wrote: > > When recording at 176.2KHz or 192Khz, the device adds a 32-bit length > header to the capture packets, which obviously needs to be ignored for > recording to work properly. > > Userspace expected: L0 L1 L2 R0 R1 R2 > ...but actually got: R2 L0 L1 L2 R0 R1 > > Also, the last byte of the length header being interpreted as L0 of > the first sample caused spikes every 0.5ms, resulting in a loud 16KHz > tone (about the highest 'B' on a piano) being present throughout > captures. > > Tested at all sample rates on an E-Mu 0404USB, and tested for > regressions on a generic USB headset. > > Signed-off-by: Calvin Owens <jcalvinowens(a)gmail.com> Thanks, applied for 3.10 kernel (but with Cc to stable) now. Takashi > --- > sound/usb/card.h | 1 + > sound/usb/pcm.c | 2 +- > sound/usb/quirks.c | 1 + > sound/usb/stream.c | 1 + > 4 files changed, 4 insertions(+), 1 deletion(-) > > diff --git a/sound/usb/card.h b/sound/usb/card.h > index 8a751b4..d32ea41 100644 > --- a/sound/usb/card.h > +++ b/sound/usb/card.h > @@ -116,6 +116,7 @@ struct snd_usb_substream { > unsigned int altset_idx; /* USB data format: index of alternate setting */ > unsigned int txfr_quirk:1; /* allow sub-frame alignment */ > unsigned int fmt_type; /* USB audio format type (1-3) */ > + unsigned int pkt_offset_adj; /* Bytes to drop from beginning of packets (for non-compliant devices) */ > > unsigned int running: 1; /* running status */ > > diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c > index f94397b..a481fea 100644 > --- a/sound/usb/pcm.c > +++ b/sound/usb/pcm.c > @@ -1170,7 +1170,7 @@ static void retire_capture_urb(struct snd_usb_substream *subs, > stride = runtime->frame_bits >> 3; > > for (i = 0; i < urb->number_of_packets; i++) { > - cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset; > + cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset + subs->pkt_offset_adj; > if (urb->iso_frame_desc[i].status && printk_ratelimit()) { > snd_printdd(KERN_ERR "frame %d active: %d\n", i, urb->iso_frame_desc[i].status); > // continue; > diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c > index 5325a38..7e292b9 100644 > --- a/sound/usb/quirks.c > +++ b/sound/usb/quirks.c > @@ -837,6 +837,7 @@ static void set_format_emu_quirk(struct snd_usb_substream *subs, > break; > } > snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id); > + subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0; > } > > void snd_usb_set_format_quirk(struct snd_usb_substream *subs, > diff --git a/sound/usb/stream.c b/sound/usb/stream.c > index ad181d5..0927cc6 100644 > --- a/sound/usb/stream.c > +++ b/sound/usb/stream.c > @@ -94,6 +94,7 @@ static void snd_usb_init_substream(struct snd_usb_stream *as, > subs->dev = as->chip->dev; > subs->txfr_quirk = as->chip->txfr_quirk; > subs->speed = snd_usb_get_speed(subs->dev); > + subs->pkt_offset_adj = 0; > > snd_usb_set_pcm_ops(as->pcm, stream); > > -- > 1.8.1.5 >

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Re: [alsa-devel] [PATCH] ASoC: samsung: fix neo1973-wm8753 compilation
by Mark Brown 12 Apr '13

12 Apr '13

On Thu, Apr 11, 2013 at 09:02:43PM +0200, Heiko Stübner wrote: > Commit b2ca78717cea (ARM: S3C24XX: make gta02.h local) already replaced > the GTA02_GPIO_* constants in neo1973-wm8753.c but forgot to remove the > inclusion of mach/gta02.h before moving the file out of mach/. Applied, thanks.

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[alsa-devel] ASoC update for v3.9-rc6
by Mark Brown 12 Apr '13

12 Apr '13

The following changes since commit 31880c37c11e28cb81c70757e38392b42e695dc6: Linux 3.9-rc6 (2013-04-07 20:49:54 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git tags/asoc-maintainers-v3.9-rc6 for you to fetch changes up to b02e48f2f8755e51fe8ce246988a29bd96f6b85e: MAINTAINERS: Update e-mail address (2013-04-12 11:53:41 +0100) May as well go along with the other sound updates. ---------------------------------------------------------------- MAINTAINERS: Update e-mail address Update the e-mail address I use for subsystems. ---------------------------------------------------------------- Mark Brown (1): MAINTAINERS: Update e-mail address MAINTAINERS | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)

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[alsa-devel] [PATCH 18/30] ASoC: samsung: move plat/ headers to local directory
by Arnd Bergmann 12 Apr '13

12 Apr '13

The plat/iis.h and plat/ac97.h files in the samsung platform are only needed by the ASoC drivers, so they can be moved into the same directory, as one more step towards a multiplatform build. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Cc: alsa-devel(a)alsa-project.org Cc: Mark Brown <broonie(a)opensource.wolfsonmicro.com> Cc: Liam Girdwood <lgirdwood(a)gmail.com> --- arch/arm/mach-s3c24xx/dma-s3c2410.c | 2 -- arch/arm/mach-s3c24xx/dma-s3c2412.c | 2 -- arch/arm/mach-s3c24xx/dma-s3c2440.c | 2 -- arch/arm/mach-s3c24xx/dma-s3c2443.c | 2 -- sound/soc/samsung/ac97.c | 2 +- sound/soc/samsung/h1940_uda1380.c | 2 +- sound/soc/samsung/neo1973_wm8753.c | 2 +- {arch/arm/plat-samsung/include/plat => sound/soc/samsung}/regs-ac97.h | 0 {arch/arm/plat-samsung/include/plat => sound/soc/samsung}/regs-iis.h | 0 sound/soc/samsung/rx1950_uda1380.c | 2 +- sound/soc/samsung/s3c24xx-i2s.c | 2 +- sound/soc/samsung/s3c24xx_uda134x.c | 2 +- 12 files changed, 6 insertions(+), 14 deletions(-) rename {arch/arm/plat-samsung/include/plat => sound/soc/samsung}/regs-ac97.h (100%) rename {arch/arm/plat-samsung/include/plat => sound/soc/samsung}/regs-iis.h (100%) diff --git a/arch/arm/mach-s3c24xx/dma-s3c2410.c b/arch/arm/mach-s3c24xx/dma-s3c2410.c index a6c94b8..30aa53f 100644 --- a/arch/arm/mach-s3c24xx/dma-s3c2410.c +++ b/arch/arm/mach-s3c24xx/dma-s3c2410.c @@ -25,10 +25,8 @@ #include <plat/regs-serial.h> #include <mach/regs-gpio.h> -#include <plat/regs-ac97.h> #include <plat/regs-dma.h> #include <mach/regs-lcd.h> -#include <plat/regs-iis.h> #include <plat/regs-spi.h> static struct s3c24xx_dma_map __initdata s3c2410_dma_mappings[] = { diff --git a/arch/arm/mach-s3c24xx/dma-s3c2412.c b/arch/arm/mach-s3c24xx/dma-s3c2412.c index c0e8c3f..ab1700e 100644 --- a/arch/arm/mach-s3c24xx/dma-s3c2412.c +++ b/arch/arm/mach-s3c24xx/dma-s3c2412.c @@ -25,10 +25,8 @@ #include <plat/regs-serial.h> #include <mach/regs-gpio.h> -#include <plat/regs-ac97.h> #include <plat/regs-dma.h> #include <mach/regs-lcd.h> -#include <plat/regs-iis.h> #include <plat/regs-spi.h> #define MAP(x) { (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID } diff --git a/arch/arm/mach-s3c24xx/dma-s3c2440.c b/arch/arm/mach-s3c24xx/dma-s3c2440.c index 1c08eccd..cd25de2 100644 --- a/arch/arm/mach-s3c24xx/dma-s3c2440.c +++ b/arch/arm/mach-s3c24xx/dma-s3c2440.c @@ -25,10 +25,8 @@ #include <plat/regs-serial.h> #include <mach/regs-gpio.h> -#include <plat/regs-ac97.h> #include <plat/regs-dma.h> #include <mach/regs-lcd.h> -#include <plat/regs-iis.h> #include <plat/regs-spi.h> static struct s3c24xx_dma_map __initdata s3c2440_dma_mappings[] = { diff --git a/arch/arm/mach-s3c24xx/dma-s3c2443.c b/arch/arm/mach-s3c24xx/dma-s3c2443.c index 000e4c6..5fe3539 100644 --- a/arch/arm/mach-s3c24xx/dma-s3c2443.c +++ b/arch/arm/mach-s3c24xx/dma-s3c2443.c @@ -25,10 +25,8 @@ #include <plat/regs-serial.h> #include <mach/regs-gpio.h> -#include <plat/regs-ac97.h> #include <plat/regs-dma.h> #include <mach/regs-lcd.h> -#include <plat/regs-iis.h> #include <plat/regs-spi.h> #define MAP(x) { \ diff --git a/sound/soc/samsung/ac97.c b/sound/soc/samsung/ac97.c index 0df3c56..c76abdf 100644 --- a/sound/soc/samsung/ac97.c +++ b/sound/soc/samsung/ac97.c @@ -20,7 +20,7 @@ #include <sound/soc.h> #include <mach/dma.h> -#include <plat/regs-ac97.h> +#include "regs-ac97.h" #include <linux/platform_data/asoc-s3c.h> #include "dma.h" diff --git a/sound/soc/samsung/h1940_uda1380.c b/sound/soc/samsung/h1940_uda1380.c index 15a3817..fa91376 100644 --- a/sound/soc/samsung/h1940_uda1380.c +++ b/sound/soc/samsung/h1940_uda1380.c @@ -20,7 +20,7 @@ #include <sound/soc.h> #include <sound/jack.h> -#include <plat/regs-iis.h> +#include "regs-iis.h" #include <asm/mach-types.h> #include "s3c24xx-i2s.h" diff --git a/sound/soc/samsung/neo1973_wm8753.c b/sound/soc/samsung/neo1973_wm8753.c index a301d8c..ccc601d 100644 --- a/sound/soc/samsung/neo1973_wm8753.c +++ b/sound/soc/samsung/neo1973_wm8753.c @@ -21,7 +21,7 @@ #include <sound/soc.h> #include <asm/mach-types.h> -#include <plat/regs-iis.h> +#include "regs-iis.h" #include <mach/gta02.h> #include "../codecs/wm8753.h" diff --git a/arch/arm/plat-samsung/include/plat/regs-ac97.h b/sound/soc/samsung/regs-ac97.h similarity index 100% rename from arch/arm/plat-samsung/include/plat/regs-ac97.h rename to sound/soc/samsung/regs-ac97.h diff --git a/arch/arm/plat-samsung/include/plat/regs-iis.h b/sound/soc/samsung/regs-iis.h similarity index 100% rename from arch/arm/plat-samsung/include/plat/regs-iis.h rename to sound/soc/samsung/regs-iis.h diff --git a/sound/soc/samsung/rx1950_uda1380.c b/sound/soc/samsung/rx1950_uda1380.c index a5826ea..704460a 100644 --- a/sound/soc/samsung/rx1950_uda1380.c +++ b/sound/soc/samsung/rx1950_uda1380.c @@ -24,7 +24,7 @@ #include <sound/soc.h> #include <sound/jack.h> -#include <plat/regs-iis.h> +#include "regs-iis.h" #include <asm/mach-types.h> #include "s3c24xx-i2s.h" diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c index 13f6dd1..a7b17c1 100644 --- a/sound/soc/samsung/s3c24xx-i2s.c +++ b/sound/soc/samsung/s3c24xx-i2s.c @@ -24,7 +24,7 @@ #include <sound/pcm_params.h> #include <mach/dma.h> -#include <plat/regs-iis.h> +#include "regs-iis.h" #include "dma.h" #include "s3c24xx-i2s.h" diff --git a/sound/soc/samsung/s3c24xx_uda134x.c b/sound/soc/samsung/s3c24xx_uda134x.c index 333e1b7..1b7b52b 100644 --- a/sound/soc/samsung/s3c24xx_uda134x.c +++ b/sound/soc/samsung/s3c24xx_uda134x.c @@ -18,7 +18,7 @@ #include <sound/soc.h> #include <sound/s3c24xx_uda134x.h> -#include <plat/regs-iis.h> +#include "regs-iis.h" #include "s3c24xx-i2s.h" -- 1.8.1.2

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[alsa-devel] [PATCH] MAINTAINERS: Update e-mail address
by Mark Brown 12 Apr '13

12 Apr '13

Update the e-mail address I use for subsystems. Signed-off-by: Mark Brown <broonie(a)opensource.wolfsonmicro.com> --- MAINTAINERS | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 836a618..c6108c3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6625,7 +6625,7 @@ S: Supported F: fs/reiserfs/ REGISTER MAP ABSTRACTION -M: Mark Brown <broonie(a)opensource.wolfsonmicro.com> +M: Mark Brown <broonie(a)kernel.org> T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git S: Supported F: drivers/base/regmap/ @@ -7374,7 +7374,7 @@ F: sound/ SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC) M: Liam Girdwood <lgirdwood(a)gmail.com> -M: Mark Brown <broonie(a)opensource.wolfsonmicro.com> +M: Mark Brown <broonie(a)kernel.org> T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git L: alsa-devel(a)alsa-project.org (moderated for non-subscribers) W: http://alsa-project.org/main/index.php/ASoC @@ -7463,7 +7463,7 @@ F: drivers/clk/spear/ SPI SUBSYSTEM M: Grant Likely <grant.likely(a)secretlab.ca> -M: Mark Brown <broonie(a)opensource.wolfsonmicro.com> +M: Mark Brown <broonie(a)kernel.org> L: spi-devel-general(a)lists.sourceforge.net Q: http://patchwork.kernel.org/project/spi-devel-general/list/ T: git git://git.secretlab.ca/git/linux-2.6.git @@ -8708,7 +8708,7 @@ F: drivers/scsi/vmw_pvscsi.h VOLTAGE AND CURRENT REGULATOR FRAMEWORK M: Liam Girdwood <lrg(a)ti.com> -M: Mark Brown <broonie(a)opensource.wolfsonmicro.com> +M: Mark Brown <broonie(a)kernel.org> W: http://opensource.wolfsonmicro.com/node/15 W: http://www.slimlogic.co.uk/?p=48 T: git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/regulator.git -- 1.7.10.4

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[alsa-devel] alsa 1.0.27 release
by Jaroslav Kysela 12 Apr '13

12 Apr '13

Hello all, the alsa 1.0.27 packages were released. You may download these packages from the main ALSA page: http://www.alsa-project.org . There are no updates for pyalsa and alsa-oss. The full changelog is provided here: http://www.alsa-project.org/main/index.php/Changes_v1.0.26_v1.0.27 Jaroslav -- Jaroslav Kysela <perex(a)perex.cz> Linux Kernel Sound Maintainer ALSA Project; Red Hat, Inc.

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[alsa-devel] [PATCH] asoc: add dummy codec
by Stas Sergeev 12 Apr '13

12 Apr '13

Hi. The attached patch adds a dummy codec for the asoc subsystem. I use it with the driver that programs the soc to drive I2S from an internal PLLs, and the audio then goes to HDMI, so no external codec is used. I've found spdif_transciever.c, which exactly is such a dummy driver, but it is bound to the particular plat device, so I made the device name a config option, and if not set, the plat device is created with the default name. It may be possible to avoid the usage of the codec driver at all, but I haven't succeeded with this, and the existance of spdif_transciever.c suggests there is no such way. Thoughts? Signed-off-by: Stas Sergeev <stsp(a)users.sourceforge.net>

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