kevin/linux
1
Fork 0
Code
a605215494
linux/sound/usb
History
Clemens Ladisch 89e1e66d6b ALSA: usb-audio: automatically detect feedback format 
There are two USB Audio Class specifications (v1 and v2), but neither of
them clearly defines the feedback format for high-speed UAC v1 devices.
Add to this whatever the Creative and M-Audio firmware writers have been
smoking, and it becomes impossible to predict the exact feedback format
used by a particular device.

Therefore, automatically detect the feedback format by looking at the
magnitude of the first received feedback value.

Also, this allows us to get rid of some special cases for E-Mu devices.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-10-27 09:17:41 +02:00
..
caiaq ALSA: snd-usb-caiaq: Add support for Traktor Kontrol S4 2010-09-10 11:08:39 +02:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-05-20 21:26:12 -07:00
usx2y sound: fixed typos 2010-10-17 10:08:27 +02:00
card.c Merge branch 'fix/misc' into topic/misc 2010-09-09 10:51:45 +02:00
card.h ALSA: usb-audio: automatically detect feedback format 2010-10-27 09:17:41 +02:00
clock.c ALSA: usb-audio: fix detection of vendor-specific device protocol settings 2010-09-03 22:36:39 +02:00
clock.h ALSA: usb-audio: simplify control interface access 2010-06-23 16:10:23 +02:00
debug.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
endpoint.c Merge branch 'fix/misc' into topic/misc 2010-09-03 22:38:52 +02:00
endpoint.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
format.c ALSA: usb-audio: fix detection of vendor-specific device protocol settings 2010-09-03 22:36:39 +02:00
format.h ALSA: usb-audio: parse more format descriptors with structs 2010-05-27 09:48:31 +02:00
helper.c ALSA: usb: USB3 SuperSpeed sound support 2010-08-14 10:30:08 +02:00
helper.h ALSA: usb-audio: fix control messages for USB_RECIP_INTERFACE 2010-06-11 18:05:38 +02:00
Kconfig ALSA: snd-usb-caiaq: Add support for Traktor Kontrol S4 2010-09-10 11:08:39 +02:00
Makefile ALSA: usb-audio: parse clock topology of UAC2 devices 2010-05-31 18:16:59 +02:00
midi.c ALSA: usb-audio: add Novation Launchpad support 2010-10-22 18:48:40 +02:00
midi.h ALSA: usb-audio: add support for Akai MPD16 2010-05-21 17:12:30 +02:00
mixer_maps.c ALSA: usb-audio: unify constants from specification 2010-05-31 18:17:22 +02:00
mixer_quirks.c ALSA: usb - Creative USB X-Fi volume knob support 2010-10-24 12:35:59 +02:00
mixer_quirks.h ALSA: usb-mixer: factor out quirks 2010-03-12 12:20:26 +01:00
mixer.c ALSA: usb/mixer: remove bogus cast 2010-09-16 22:50:51 +02:00
mixer.h ALSA: usb-audio: simplify control interface access 2010-06-23 16:10:23 +02:00
pcm.c ALSA: usb-audio: automatically detect feedback format 2010-10-27 09:17:41 +02:00
pcm.h ALSA: usb-audio: simplify control interface access 2010-06-23 16:10:23 +02:00
proc.c ALSA: usb-audio: automatically detect feedback format 2010-10-27 09:17:41 +02:00
proc.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
quirks-table.h ALSA: usb-audio: add Novation Launchpad support 2010-10-22 18:48:40 +02:00
quirks.c ALSA: usb-audio: add Novation Launchpad support 2010-10-22 18:48:40 +02:00
quirks.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
urb.c ALSA: usb-audio: automatically detect feedback format 2010-10-27 09:17:41 +02:00
urb.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
usbaudio.h ALSA: usb-audio: add Novation Launchpad support 2010-10-22 18:48:40 +02:00