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ALSA: usb-mixer: Add support for Audio Class v2.0

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USB Audio Class v2.0 compliant devices have different descriptors and a
different way of setting/getting min/max/res/cur properties. This patch
adds support for them.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Daniel Mack
2010-03-11 21:13:25 +01:00
committed by Takashi Iwai
parent 99fc86450c
commit 23caaf19b1
4 changed files with 343 additions and 100 deletions
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3
sound/usb/mixer.h
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@ -10,6 +10,9 @@ struct usb_mixer_interface {
/* array[MAX_ID_ELEMS], indexed by unit id */
struct usb_mixer_elem_info **id_elems;
/* the usb audio specification version this interface complies to */
int protocol;
/* Sound Blaster remote control stuff */
const struct rc_config *rc_cfg;
u32 rc_code;