[Fwd: Re: Davinci ASoC support (patch)]

[Fwd: Re: Davinci ASoC support (patch)]

[lokowich]

Forwarded from davinci-linux-open-source list:

I've built this ASoC patch into my DaVinci git kernel (thanks for the 
SENSORS tip), and can use aplay and speaker-test, but no sound.  Figured 
it may be a mixer/volume control issue, but the alsamixer is unable to 
open for a failed ioctl on USBDEVFS_IOCTL.  Not sure why there is a USB 
dependency.  Noted that there is no /sys/class/sound/mixer in my sysfs.  
Any ideas?

Mark

Bernard Blackham wrote:
> Behme wrote:
>   
>> While searching something different, I just found
>>
>> http://www.spinics.net/lists/alsa-devel/msg12535.html
>>
>> As I'm not subscribed to alsa-devel, I don't have the original post. 
>> Maybe any of the authors can post it do this list as well?
>>
>> The patch mainly applies to our git. I fixed two small rejects in 
>> Kconfig and Makefile as the patch is for newer kernel than our git. 
>> Untested patch against our git in attachment. Anybody likes to test?
>>     
>
> Well, I tried compiling it and it failed to build. It appears that it's 
> built on a set of patches for Davinci posted to LAK, including this 
> completely revamped EDMA support[1]:
>
> http://www.spinics.net/lists/arm-kernel/msg47450.html
>
> So I had to change a few definitions, import a few functions from the new
> DMA support and managed to get it compiling and loading, but not yet working
> (tried various sample rates and formats):
>
> root@davinci-dvevm:/tst$ aplay test.wav
> Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
> aplay: set_params:878: Broken configuration for this PCM: no configurations
> available
>
> root@davinci-dvevm:/tst$ arecord -r 48000 -f S16_LE
> Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
> arecord: set_params:878: Broken configuration for this PCM: no
> configurations available
>
>
> And this is the extent of my knowledge of ALSA - I can continue digging, but
> maybe somebody else will beat me to it =) It's looking promising though.
>
> Attached is the patch I have so far that applies against current git. This
> is not for going upstream, but just for testing. Notes:
> - Apply patch
> - Enable SND_SOC, SND_DAVINCI_SOC, SND_DAVINCI_SOC_I2S, SND_DAVINCI_SOC_EVM
> and SND_SOC_TLV320AIC3X.
> - Make sure CONFIG_I2C_DAVINCI is enabled, but disable the
> CONFIG_SENSORS_TLV320* options.
> - Build.
> - Load the snd-soc-evm module.
>
> Bernard.
>
> [1] These patches appear to have gone absolutely nowhere beyond that list. I
> can't find them in any tree. But they are cleaner and more conforming to the
> Linux Kernel style than what's currently in git.
>
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@linux.davincidsp.com
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
>   

Re: [Fwd: Re: Davinci ASoC support (patch)]

[Mark Brown]

On Fri, Mar 28, 2008 at 09:27:04AM -0500, lokowich wrote:

> Forwarded from davinci-linux-open-source list:

CCing in Vladimir Barinov who contributed the DaVinci support.

> I've built this ASoC patch into my DaVinci git kernel (thanks for the 
> SENSORS tip), and can use aplay and speaker-test, but no sound.  Figured 
> it may be a mixer/volume control issue, but the alsamixer is unable to 
> open for a failed ioctl on USBDEVFS_IOCTL.  Not sure why there is a USB 
> dependency.  Noted that there is no /sys/class/sound/mixer in my sysfs.  
> Any ideas?

It might be helpful to post dmesg output showing the sound support
being loaded.

> Bernard Blackham wrote:
> > Behme wrote:
> >   
> >> While searching something different, I just found
> >>
> >> http://www.spinics.net/lists/alsa-devel/msg12535.html
> >>
> >> As I'm not subscribed to alsa-devel, I don't have the original post. 
> >> Maybe any of the authors can post it do this list as well?
> >>
> >> The patch mainly applies to our git. I fixed two small rejects in 
> >> Kconfig and Makefile as the patch is for newer kernel than our git. 
> >> Untested patch against our git in attachment. Anybody likes to test?
> >>     
> >
> > Well, I tried compiling it and it failed to build. It appears that it's 
> > built on a set of patches for Davinci posted to LAK, including this 
> > completely revamped EDMA support[1]:
> >
> > http://www.spinics.net/lists/arm-kernel/msg47450.html
> >
> > So I had to change a few definitions, import a few functions from the new
> > DMA support and managed to get it compiling and loading, but not yet working
> > (tried various sample rates and formats):
> >
> > root@davinci-dvevm:/tst$ aplay test.wav
> > Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
> > ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
> > aplay: set_params:878: Broken configuration for this PCM: no configurations
> > available
> >
> > root@davinci-dvevm:/tst$ arecord -r 48000 -f S16_LE
> > Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
> > ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
> > arecord: set_params:878: Broken configuration for this PCM: no
> > configurations available
> >
> >
> > And this is the extent of my knowledge of ALSA - I can continue digging, but
> > maybe somebody else will beat me to it =) It's looking promising though.
> >
> > Attached is the patch I have so far that applies against current git. This
> > is not for going upstream, but just for testing. Notes:
> > - Apply patch
> > - Enable SND_SOC, SND_DAVINCI_SOC, SND_DAVINCI_SOC_I2S, SND_DAVINCI_SOC_EVM
> > and SND_SOC_TLV320AIC3X.
> > - Make sure CONFIG_I2C_DAVINCI is enabled, but disable the
> > CONFIG_SENSORS_TLV320* options.
> > - Build.
> > - Load the snd-soc-evm module.
> >
> > Bernard.
> >
> > [1] These patches appear to have gone absolutely nowhere beyond that list. I
> > can't find them in any tree. But they are cleaner and more conforming to the
> > Linux Kernel style than what's currently in git.
> >
> >   
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Davinci-linux-open-source mailing list
> > Davinci-linux-open-source@linux.davincidsp.com
> > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
> >   
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 

-- 
"You grabbed my hand and we fell into it, like a daydream - or a fever."

Any wigets for ADC to DAC ?

[Alexandre BOUIN]

Hi Mark,

In intern, we're still using WM8900 codec. We'd like to know in ASoC layer,
there is a widget to declare a possible audio path between ADC and DAC.

By the way, we could power on all necessary widget to use ADCtoDAC Sidetone,
without dealing with another audio path or start pcm on capture/playback.

Thanks and regards,
Alex.

ALSA Lib : snd_dlopen lib error

[Alexandre BOUIN]

Hi list,

I'm currently to develop an application that use ALSA Lib mixer features. My
first ALSA user application.
I've succeed in compiling it but on application start, the message is
printed : 
KPV test prepare DAC ... snd_mixer_open
ALSA lib control.c:878:(snd_ctl_open_conf) symbol _snd_ctl_hw_open is not
define
d inside (null)
problems problems attaching alsa mixer: No such device or address
Function failed with error code -1

My linking parameters are : 
-lasound -lm -rdynamic -ldl
Cross compiling for arm in Cygwin

I got this version on both embedded and compiler : libdl-2.3.2.so 

All tips would be greatfull ;)

Regards,
Alex.

Re: [Fwd: Re: Davinci ASoC support (patch)]

[Vova Barinov]

Mark Brown wrote:
> On Fri, Mar 28, 2008 at 09:27:04AM -0500, lokowich wrote:
>
>   
>> Forwarded from davinci-linux-open-source list:
>>     
>
> CCing in Vladimir Barinov who contributed the DaVinci support.
>
>   
>> I've built this ASoC patch into my DaVinci git kernel (thanks for the 
>> SENSORS tip), and can use aplay and speaker-test, but no sound.  Figured 
>> it may be a mixer/volume control issue, but the alsamixer is unable to 
>> open for a failed ioctl on USBDEVFS_IOCTL.  Not sure why there is a USB 
>> dependency.  Noted that there is no /sys/class/sound/mixer in my sysfs.  
>> Any ideas?
>>     
How do you figure out that you can play sound?
Also what platform do you use - is it Davinci-EVM? what line output do 
you use to hear the sound?
Please, post your dmesg log and cat /proc/interrupts too.
>
> It might be helpful to post dmesg output showing the sound support
> being loaded
>   
>> Bernard Blackham wrote:
>>     
>>> Behme wrote:
>>>   
>>>       
>>>> While searching something different, I just found
>>>>
>>>> http://www.spinics.net/lists/alsa-devel/msg12535.html
>>>>
>>>> As I'm not subscribed to alsa-devel, I don't have the original post. 
>>>> Maybe any of the authors can post it do this list as well?
>>>>
>>>> The patch mainly applies to our git. I fixed two small rejects in 
>>>> Kconfig and Makefile as the patch is for newer kernel than our git. 
>>>> Untested patch against our git in attachment. Anybody likes to test?
>>>>     
>>>>         
>>> Well, I tried compiling it and it failed to build. It appears that it's 
>>> built on a set of patches for Davinci posted to LAK, including this 
>>> completely revamped EDMA support[1]:
>>>
>>> http://www.spinics.net/lists/arm-kernel/msg47450.html
>>>       
Yep, it's needed.
>>> So I had to change a few definitions, import a few functions from the new
>>> DMA support and managed to get it compiling and loading, but not yet working
>>> (tried various sample rates and formats):
>>>
>>> root@davinci-dvevm:/tst$ aplay test.wav
>>> Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
>>> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
>>> aplay: set_params:878: Broken configuration for this PCM: no configurations
>>> available
>>>
>>> root@davinci-dvevm:/tst$ arecord -r 48000 -f S16_LE
>>> Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
>>> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
>>> arecord: set_params:878: Broken configuration for this PCM: no
>>> configurations available
>>>
>>>
>>> And this is the extent of my knowledge of ALSA - I can continue digging, but
>>> maybe somebody else will beat me to it =) It's looking promising though.
>>>
>>> Attached is the patch I have so far that applies against current git. This
>>> is not for going upstream, but just for testing. Notes:
>>> - Apply patch
>>> - Enable SND_SOC, SND_DAVINCI_SOC, SND_DAVINCI_SOC_I2S, SND_DAVINCI_SOC_EVM
>>> and SND_SOC_TLV320AIC3X.
>>> - Make sure CONFIG_I2C_DAVINCI is enabled, but disable the
>>> CONFIG_SENSORS_TLV320* options.
>>> - Build.
>>> - Load the snd-soc-evm module.
>>>
>>> Bernard.
>>>
>>> [1] These patches appear to have gone absolutely nowhere beyond that list. I
>>> can't find them in any tree. But they are cleaner and more conforming to the
>>> Linux Kernel style than what's currently in git.
>>>
>>>   
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> Davinci-linux-open-source mailing list
>>> Davinci-linux-open-source@linux.davincidsp.com
>>> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
>>>   
>>>       
>> _______________________________________________
>> Alsa-devel mailing list
>> Alsa-devel@alsa-project.org
>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>>
>>     
>
>   

Re: [Fwd: Re: Davinci ASoC support (patch)]

[Vova Barinov]

lokowich wrote:
>
>
> Vova Barinov wrote:
>> Mark Brown wrote:
>>   
>>> On Fri, Mar 28, 2008 at 09:27:04AM -0500, lokowich wrote:
>>>
>>>   
>>>     
>>>> Forwarded from davinci-linux-open-source list:
>>>>     
>>>>       
>>> CCing in Vladimir Barinov who contributed the DaVinci support.
>>>
>>>   
>>>     
>>>> I've built this ASoC patch into my DaVinci git kernel (thanks for the 
>>>> SENSORS tip), and can use aplay and speaker-test, but no sound.  Figured 
>>>> it may be a mixer/volume control issue, but the alsamixer is unable to 
>>>> open for a failed ioctl on USBDEVFS_IOCTL.  Not sure why there is a USB 
>>>> dependency.  Noted that there is no /sys/class/sound/mixer in my sysfs.  
>>>> Any ideas?
>>>>     
>>>>       
>> How do you figure out that you can play sound?
>> Also what platform do you use - is it Davinci-EVM? what line output do 
>> you use to hear the sound?
>> Please, post your dmesg log and cat /proc/interrupts too.
>>   
>
>     Excerpt from dmesg:
>     Advanced Linux Sound Architecture Driver Version 1.0.16.
>     ASoC version 0.13.2
>     AIC3X Audio Codec 0.1
>     asoc: aic3x <-> davinci-i2s mapping ok
>     ALSA device list:
>       #0: DaVinci EVM (aic3x)
>
>     /proc/interrupts:
>                CPU0
>       6:          0       AINTC  dm644xresizer
>       8:      23608       AINTC  davincifb
>      13:       6995       AINTC  EMAC
>      22:        107       AINTC  ide0
>      32:      39436       AINTC  clockevent
>      33:          3       AINTC  free-run counter
>      39:        217       AINTC  i2c_davinci
>      40:        204       AINTC  serial
>     Err:          0
>
Sorry for the late response.
I don't see EDMA interrupts. So it seems that you have no i2s transfers 
between codec and SoC.
>
>
>     This is the DM6446 EVM.  Note, my kernel has been patched with
>     latest ALSA, to no avail.  I hear the  DAC pop during
>     initialization on both the Line Out and Headphone jacks.
>
>>> It might be helpful to post dmesg output showing the sound support
>>> being loaded
>>>   
>>>     
>>>> Bernard Blackham wrote:
>>>>     
>>>>       
>>>>> Behme wrote:
>>>>>   
>>>>>       
>>>>>         
>>>>>> While searching something different, I just found
>>>>>>
>>>>>> http://www.spinics.net/lists/alsa-devel/msg12535.html
>>>>>>
>>>>>> As I'm not subscribed to alsa-devel, I don't have the original post. 
>>>>>> Maybe any of the authors can post it do this list as well?
>>>>>>
>>>>>> The patch mainly applies to our git. I fixed two small rejects in 
>>>>>> Kconfig and Makefile as the patch is for newer kernel than our git. 
>>>>>> Untested patch against our git in attachment. Anybody likes to test?
>>>>>>     
>>>>>>         
>>>>>>           
>>>>> Well, I tried compiling it and it failed to build. It appears that it's 
>>>>> built on a set of patches for Davinci posted to LAK, including this 
>>>>> completely revamped EDMA support[1]:
>>>>>
>>>>> http://www.spinics.net/lists/arm-kernel/msg47450.html
>>>>>       
>>>>>         
>> Yep, it's needed.
>>   
>>>>> So I had to change a few definitions, import a few functions from the new
>>>>> DMA support and managed to get it compiling and loading, but not yet working
>>>>> (tried various sample rates and formats):
>>>>>
>>>>> root@davinci-dvevm:/tst$ aplay test.wav
>>>>> Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
>>>>> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
>>>>> aplay: set_params:878: Broken configuration for this PCM: no configurations
>>>>> available
>>>>>
>>>>> root@davinci-dvevm:/tst$ arecord -r 48000 -f S16_LE
>>>>> Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
>>>>> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
>>>>> arecord: set_params:878: Broken configuration for this PCM: no
>>>>> configurations available
>>>>>
>>>>>
>>>>> And this is the extent of my knowledge of ALSA - I can continue digging, but
>>>>> maybe somebody else will beat me to it =) It's looking promising though.
>>>>>
>>>>> Attached is the patch I have so far that applies against current git. This
>>>>> is not for going upstream, but just for testing. Notes:
>>>>> - Apply patch
>>>>> - Enable SND_SOC, SND_DAVINCI_SOC, SND_DAVINCI_SOC_I2S, SND_DAVINCI_SOC_EVM
>>>>> and SND_SOC_TLV320AIC3X.
>>>>> - Make sure CONFIG_I2C_DAVINCI is enabled, but disable the
>>>>> CONFIG_SENSORS_TLV320* options.
>>>>> - Build.
>>>>> - Load the snd-soc-evm module.
>>>>>
>>>>> Bernard.
>>>>>
>>>>> [1] These patches appear to have gone absolutely nowhere beyond that list. I
>>>>> can't find them in any tree. But they are cleaner and more conforming to the
>>>>> Linux Kernel style than what's currently in git.
>>>>>
>>>>>   
>>>>> ------------------------------------------------------------------------
>>>>>
>>>>> _______________________________________________
>>>>> Davinci-linux-open-source mailing list
>>>>> Davinci-linux-open-source@linux.davincidsp.com
>>>>> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
>>>>>   
>>>>>       
>>>>>         
>>>> _______________________________________________
>>>> Alsa-devel mailing list
>>>> Alsa-devel@alsa-project.org
>>>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>>>>
>>>>     
>>>>       
>>>   
>>>     
>>
>> _______________________________________________
>> Alsa-devel mailing list
>> Alsa-devel@alsa-project.org
>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>>
>>
>>   

[Fwd: Re: Davinci ASoC support (patch)]

[lokowich]

Vova Barinov wrote:
> Mark Brown wrote:
>   
>> On Fri, Mar 28, 2008 at 09:27:04AM -0500, lokowich wrote:
>>
>>   
>>     
>>> Forwarded from davinci-linux-open-source list:
>>>     
>>>       
>> CCing in Vladimir Barinov who contributed the DaVinci support.
>>
>>   
>>     
>>> I've built this ASoC patch into my DaVinci git kernel (thanks for the 
>>> SENSORS tip), and can use aplay and speaker-test, but no sound.  Figured 
>>> it may be a mixer/volume control issue, but the alsamixer is unable to 
>>> open for a failed ioctl on USBDEVFS_IOCTL.  Not sure why there is a USB 
>>> dependency.  Noted that there is no /sys/class/sound/mixer in my sysfs.  
>>> Any ideas?
>>>     
>>>       
> How do you figure out that you can play sound?
> Also what platform do you use - is it Davinci-EVM? what line output do 
> you use to hear the sound?
> Please, post your dmesg log and cat /proc/interrupts too.
>   

    Excerpt from dmesg:
    Advanced Linux Sound Architecture Driver Version 1.0.16.
    ASoC version 0.13.2
    AIC3X Audio Codec 0.1
    asoc: aic3x <-> davinci-i2s mapping ok
    ALSA device list:
      #0: DaVinci EVM (aic3x)

    /proc/interrupts:
               CPU0
      6:          0       AINTC  dm644xresizer
      8:      23608       AINTC  davincifb
     13:       6995       AINTC  EMAC
     22:        107       AINTC  ide0
     32:      39436       AINTC  clockevent
     33:          3       AINTC  free-run counter
     39:        217       AINTC  i2c_davinci
     40:        204       AINTC  serial
    Err:          0

    This is the DM6446 EVM.  Note, my kernel has been patched with
    latest ALSA, to no avail.  I hear the  DAC pop during initialization
    on both the Line Out and Headphone jacks.

>> It might be helpful to post dmesg output showing the sound support
>> being loaded
>>   
>>     
>>> Bernard Blackham wrote:
>>>     
>>>       
>>>> Behme wrote:
>>>>   
>>>>       
>>>>         
>>>>> While searching something different, I just found
>>>>>
>>>>> http://www.spinics.net/lists/alsa-devel/msg12535.html
>>>>>
>>>>> As I'm not subscribed to alsa-devel, I don't have the original post. 
>>>>> Maybe any of the authors can post it do this list as well?
>>>>>
>>>>> The patch mainly applies to our git. I fixed two small rejects in 
>>>>> Kconfig and Makefile as the patch is for newer kernel than our git. 
>>>>> Untested patch against our git in attachment. Anybody likes to test?
>>>>>     
>>>>>         
>>>>>           
>>>> Well, I tried compiling it and it failed to build. It appears that it's 
>>>> built on a set of patches for Davinci posted to LAK, including this 
>>>> completely revamped EDMA support[1]:
>>>>
>>>> http://www.spinics.net/lists/arm-kernel/msg47450.html
>>>>       
>>>>         
> Yep, it's needed.
>   
>>>> So I had to change a few definitions, import a few functions from the new
>>>> DMA support and managed to get it compiling and loading, but not yet working
>>>> (tried various sample rates and formats):
>>>>
>>>> root@davinci-dvevm:/tst$ aplay test.wav
>>>> Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
>>>> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
>>>> aplay: set_params:878: Broken configuration for this PCM: no configurations
>>>> available
>>>>
>>>> root@davinci-dvevm:/tst$ arecord -r 48000 -f S16_LE
>>>> Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
>>>> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
>>>> arecord: set_params:878: Broken configuration for this PCM: no
>>>> configurations available
>>>>
>>>>
>>>> And this is the extent of my knowledge of ALSA - I can continue digging, but
>>>> maybe somebody else will beat me to it =) It's looking promising though.
>>>>
>>>> Attached is the patch I have so far that applies against current git. This
>>>> is not for going upstream, but just for testing. Notes:
>>>> - Apply patch
>>>> - Enable SND_SOC, SND_DAVINCI_SOC, SND_DAVINCI_SOC_I2S, SND_DAVINCI_SOC_EVM
>>>> and SND_SOC_TLV320AIC3X.
>>>> - Make sure CONFIG_I2C_DAVINCI is enabled, but disable the
>>>> CONFIG_SENSORS_TLV320* options.
>>>> - Build.
>>>> - Load the snd-soc-evm module.
>>>>
>>>> Bernard.
>>>>
>>>> [1] These patches appear to have gone absolutely nowhere beyond that list. I
>>>> can't find them in any tree. But they are cleaner and more conforming to the
>>>> Linux Kernel style than what's currently in git.
>>>>
>>>>   
>>>> ------------------------------------------------------------------------
>>>>
>>>> _______________________________________________
>>>> Davinci-linux-open-source mailing list
>>>> Davinci-linux-open-source@linux.davincidsp.com
>>>> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
>>>>   
>>>>       
>>>>         
>>> _______________________________________________
>>> Alsa-devel mailing list
>>> Alsa-devel@alsa-project.org
>>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>>>
>>>     
>>>       
>>   
>>     
>
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
>
>