linux/sound/usb
Eldad Zack 1dc669fed6 ALSA: usb-audio: UAC2: support read-only freq control
Some clocks might be read-only, e.g., external clocks (see also
UAC2 4.7.2.1).

In this case, setting the sample frequency will always fail
(even if the rate is equal to the current clock rate),
therefore do not write, but read the value and compare to the
requested rate.
If the clock is read only, avoid reading it twice.

If it doesn't match, return -ENXIO since the clock is invalid for
this configuration.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-04 08:32:07 +02:00
..
6fire ALSA: usb6fire: prevent driver panic state when stopping 2012-12-07 15:03:34 +01:00
caiaq ALSA: snd-usb-caiaq: fix smatch warnings 2013-03-07 09:24:12 +01:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
usx2y mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
card.c ALSA: usb-audio: UAC2: auto clock selection module param 2013-04-04 08:31:32 +02:00
card.h ALSA: usb-audio: add channel map support 2012-11-26 16:24:02 +01:00
clock.c ALSA: usb-audio: UAC2: support read-only freq control 2013-04-04 08:32:07 +02:00
clock.h ALSA: usb-audio: UAC2: do clock validity check earlier 2013-04-04 08:30:59 +02:00
debug.h ALSA: usb-audio: make hwc_debug a noop in case HW_CONST_DEBUG is not set 2011-05-18 11:44:35 +02:00
endpoint.c ALSA: usb-audio: spelling correction 2013-04-04 08:30:30 +02:00
endpoint.h ALSA: usb-audio: spelling correction 2013-04-04 08:30:30 +02:00
format.c ALSA: usb-audio: UAC2: do clock validity check earlier 2013-04-04 08:30:59 +02:00
format.h ALSA: snd-usb: handle the bmFormats field as unsigned int 2013-03-18 08:47:04 +01:00
helper.c ALSA: snd-usb: Add quirks for Playback Designs devices 2012-09-04 11:31:14 +02:00
helper.h ALSA: usb-audio: increase control transfer timeout 2011-09-27 09:21:48 +02:00
Kconfig ALSA: sound/usb: remove CONFIG_EXPERIMENTAL 2012-10-25 00:17:47 +02:00
Makefile ALSA: snd-usb: move code from urb.c to endpoint.c 2011-09-14 17:07:03 +02:00
midi.c ALSA: usb-audio: neaten EXPORT_SYMBOLS placement 2013-04-04 08:30:24 +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: add support for M-Audio FT C600 2013-02-11 14:02:27 +01:00
mixer_quirks.c ALSA: usb-audio: add support for M-Audio FT C600 2013-02-11 14:02:27 +01:00
mixer_quirks.h ALSA: usb-mixer: factor out quirks 2010-03-12 12:20:26 +01:00
mixer.c ALSA: snd-usb: mixer: ignore -EINVAL in snd_usb_mixer_controls() 2013-03-20 08:43:00 +01:00
mixer.h ALSA: usb-audio: add control index offset 2012-11-29 08:43:12 +01:00
pcm.c ALSA: usb-audio: spelling correction 2013-04-04 08:30:30 +02:00
pcm.h ALSA: usb: refine delay information with USB frame counter 2011-09-12 10:30:20 +02:00
power.h ALSA: usbaudio: implement USB autosuspend 2011-03-11 14:59:29 +01:00
proc.c ALSA: usb-audio: convert list_for_each to entry variant 2013-04-04 08:30:06 +02:00
proc.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
quirks-table.h ALSA: usb-audio: Trust fields given in the quirk 2013-03-18 08:46:37 +01:00
quirks.c ALSA: usb-audio: Trust fields given in the quirk 2013-03-18 08:46:37 +01:00
quirks.h ALSA: snd-usb: Add quirks for Playback Designs devices 2012-09-04 11:31:14 +02:00
stream.c ALSA: usb-audio: convert list_for_each to entry variant 2013-04-04 08:30:06 +02:00
stream.h ALSA: snd-usb: re-order code 2011-09-14 17:07:02 +02:00
usbaudio.h ALSA: usb-audio: UAC2: auto clock selection module param 2013-04-04 08:31:32 +02:00