[alsa-devel] [PATCH RFC 7/9] ALSA: usb-audio: conditional interface altsetting

Clemens Ladisch clemens at ladisch.de
Mon Aug 19 12:08:38 CEST 2013

Eldad Zack wrote:
> On some devices, if the endpoint for the other direction is in use,
> setting one interface will shutdown the other (in use) endpoint.

There are (non-UAC) devices where both endpoints are in the same

> This patch needs revising. It adds a get_interface function, which
> should not be neccesary (possibly unreliable on some devices?).

struct usb_interface has cur_altsetting.


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