[alsa-devel] [Q] Writing an alsa module for usb audio & video capture device

Ezequiel Garcia elezegarcia at gmail.com
Thu Jun 7 20:29:38 CEST 2012

Hi Clemens,

On Wed, Jun 6, 2012 at 2:26 PM, Clemens Ladisch <clemens at ladisch.de> wrote:
> Ezequiel Garcia wrote:
>> 1. Why do I need to write another module for my device? Is it not
>> possible to make it work
>> with snd-usb-audio?
> Of course it is possible; just make it USB Audio class compliant.

What do you mean by that? What's exactly the scope of supported
devices by snd-usb-audio?

>> 2. The device uses ac97 chip, could I use some ac97 common code
>> instead of rewriting it myself?
> The AC'97 code is for managing codecs on an AC'97 bus, but the bus
> inside a USB device is not directly accessible to code on the host.

Thank you very much!

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