[LAU] Roland Integra-7 and Alsa 1.0.28

[Harry van Haaren]

On Sun, Dec 7, 2014 at 9:23 PM, Mirko Horstmann <bb at mirkokosmos.net> wrote:

> Hi,
>
> I just remembered this post from the alsa-devel list from last year that
> said several Yamaha and Roland devices may work through a patch (which I
> believe should have found it's way into Alsa 1.0.28):
>
> http://mailman.alsa-project.org/pipermail/alsa-devel/2013-June/063475.html
>
> I thought I'd give it a try: I own a Roland Integra-7 sound module which
> is supposed to be able to send it's output over USB. I cannot get it to
> output any sound, though. Here's what I'm trying to do (USB mode is set to
> "Vendor (Audio + MIDI)" on the device):
>
> mir at robotnik:~$ arecord -l
> **** List of CAPTURE Hardware Devices ****
> card 0: PCH [HDA Intel PCH], device 0: ALC272 Analog [ALC272 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: INTEGRA7 [INTEGRA-7], device 0: USB Audio [USB Audio]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
>
> mir at robotnik:~$ arecord -d 10 -c 2 -f S32_LE -r44100  -D hw:INTEGRA7
> test.wav
> Recording WAVE 'test.wav' : Signed 32 bit Little Endian, Rate 44100 Hz,
> Stereo
> arecord: pcm_read:2031: read error: Input/output error
>
>
> With different settings, arecord tells me that S32_LE and 44100 are the
> only available format and rate. The "Recording WAVE..." message appears
> instantly, the error message appears after the 10 seconds. The wave file
> then exists with a header but no audio content.
>
> Is there anything I'm doing wrong, or did I misinterpret the post on
> alsa-devel and a quirk is still needed for the Integra?
>
I think the quirk is there to tell the kernel module that it can handle the
vendor/product IDs.. so if its listed by arecord -l then that's OK.

The following post (by Clemens) lists hardware capabilities, after
compilation:
http://www.spinics.net/linux/fedora/alsa-user/msg07230.html

Would you post the output of the program in the email thread that I linked?
Perhaps there's an ALSA format issue or so.

HTH, Cheers, -Harry

PS: Anybody have a one-liner command that lists ALSA hardware capabilities
(not current status)?

-- 

http://www.openavproductions.com
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