[alsa-devel] where to get snd_pcm_hardware info when usb audio device plug in?

[Clemens Ladisch]

loody wrote:
> is it possible to get snd_pcm_hardware information in /proc, /sys or
> anywhere when usb audio device plug in?
>
> if no, is there api I can take in usermode to get snd_pcm_hardware of
> this usb audio device?

Something like this?
http://download.atmark-techno.com/misc/demos/usb-audio-a500-howto/hw_params.c


Regards,
Clemens