Linux USB audio driver

Connie Kuang

Hi all,

I have a question about usb audio, is code path "kernel\sound\usb" for usb audio driver, if yes, could it support standard usb audio device like usb speaker ?

Thanks.

over 13 years ago

0 Israel Cepeda over 13 years ago

TI__Expert 5515 points

Hi Connie,

Yes, there is where the driver is, and it supports audio devices, I haven't use USB speakers yet, but I have use USB headset.

Regards!

ICe

0 Israel Cepeda over 13 years ago in reply to Israel Cepeda

TI__Expert 5515 points

Forgot to mention that if you want to know if your devices is being detected/registered just run: # cat /proc/asound/cards

It'll list all the audio cards you have on your device (internal or build-in and external).

If your card is not being listed could be that USB audio is not enabled in your kernel.

Please don't forget to verify the answer if it has solve your doubt. Thanks

Regards!

ICe

0 Connie Kuang over 13 years ago in reply to Israel Cepeda

Intellectual 370 points

Thank you!

0 vamshi krishna gajjela over 13 years ago in reply to Israel Cepeda

Expert 1695 points

Hi ICe,

I am working on gingerbread on omap4 platform with 2.6.35 kernel. Does this kernel support USB 2.0 audio class drivers. How to ensure if it supports. How about enabling USB based audio devices on this platform and latency issues on USB audio path. What is the bandwidth provided for audio class drivers.

Thanks,

Vamshi G.

0 Israel Cepeda over 13 years ago in reply to vamshi krishna gajjela

TI__Expert 5515 points

Hi Vamshi,

It is supported as far as I know, do you see the device being detected when plugin?

Do you see it listed on sound cards?

if not, check Device Drivers > USB Support > EHCI support for OMAp3 and later chips in kernel

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Linux USB audio driver