25 Nov
2010
25 Nov
'10
8:23 p.m.
On 11/25/2010 01:51 AM, Ramya Desai wrote:
I did not find a document for writing a USB audio driver under Linux environment. Please let me know any sample driver / link / document which describes about the USB audio driver under Linux environment.
As Clemens wrote, examining existing drivers in the kernel repository (under sound/usb) might help you most. Just have a look how they communicate with the hardware and how they set up the ALSA components inside the kernel.
Is there any documentation for the chip you're writing the driver for, about the USB protocol it uses etc? Are you sure it does not follow the USB audio class specifications? Posting the output of 'lsusb -v' might also help.
Daniel