[LAD] Usb Audio Driver
Gabriel M. Beddingfield
gabrbedd at gmail.com
Wed Dec 11 01:01:53 UTC 2013
On 12/10/2013 12:44 PM, Lucas Takejame wrote:
> Hello LAD, I'm working in company which is developing a guitar pedal
> board which runs Linux (arch) and my task now is to make the kernel's
> usb audio driver more appropriate to our sound card. I'm kinda lost in
> this since i have a brief knowledge on usb protocol so I was hoping that
> you could give me some directions on how can I optimize the driver
> latency wise, any tips?
There's several folks here who do this, but your best bet is to look for
advice (or contractors) on the alsa-devel mailing list.
One option is to implement a class-compliant USB Audio device. Then
your device will work out of the box with all operating systems.
If class-compliance doesn't suit your device... then look for examples
in the linux kernel in sound/usb where there's a few non-class-compliant
cards cards supported there.
In addition, check out these resources:
* Takashi Iwei's ALSA driver tutorial. Concentrate on the
PCM interface portion of the document.
* Linux Device Drivers from O'Reilly media.
More information about the Linux-audio-dev