linux/sound
Hector Martin 1b7ecc241a ALSA: usb-audio: work around streaming quirk for MacroSilicon MS2109
Further investigation of the L-R swap problem on the MS2109 reveals that
the problem isn't that the channels are swapped, but rather that they
are swapped and also out of phase by one sample. In other words, the
issue is actually that the very first frame that comes from the hardware
is a half-frame containing only the right channel, and after that
everything becomes offset.

So introduce a new quirk field to drop the very first 2 bytes that come
in after the format is configured and a capture stream starts. This puts
the channels in phase and in the correct order.

Cc: stable@vger.kernel.org
Signed-off-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20200810082400.225858-1-marcan@marcan.st
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-08-10 12:57:12 +02:00
..
ac97 ALSA: ac97: Constify snd_ac97_bus_ops definitions 2020-01-03 09:24:11 +01:00
aoa treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
arm ASoC: arm: use asoc_rtd_to_cpu() / asoc_rtd_to_codec() macro for DAI pointer 2020-03-27 14:44:56 +00:00
atmel ALSA: atmel: Remove invalid "fall through" comments 2020-07-09 19:10:11 +02:00
core ALSA: seq: oss: Serialize ioctls 2020-08-05 08:27:39 +02:00
drivers Merge branch 'for-next' into for-linus 2020-08-03 08:10:08 +02:00
firewire ALSA: firewire: fix kernel-doc 2020-07-07 12:09:32 +02:00
hda ALSA: hda: Add dma stop delay variable 2020-08-05 12:27:47 +02:00
i2c ALSA: i2c: Constify snd_kcontrol_new items 2020-01-03 09:24:24 +01:00
isa ALSA: isa: delete repeated words in comments 2020-08-06 09:29:25 +02:00
mips ALSA: sgio2audio: Remove usage of dropped hw_params/hw_free functions 2020-03-06 12:06:41 +01:00
oss ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
parisc sound updates for 5.6-rc1 2020-01-28 16:26:57 -08:00
pci ALSA: hda - fix the micmute led status for Lenovo ThinkCentre AIO 2020-08-10 08:44:49 +02:00
pcmcia ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
ppc ALSA: Replace the word "slave" in vmaster API 2020-07-20 10:10:47 +02:00
sh ALSA: sh: Fix compile warning wrt const 2020-01-05 16:15:14 +01:00
soc Merge branch 'for-next' into for-linus 2020-08-03 08:10:08 +02:00
sparc ALSA: Replace HTTP links with HTTPS ones 2020-07-19 20:49:25 +02:00
spi ALSA: spi: More constification 2020-01-05 16:15:13 +01:00
synth ALSA: emux: More constifications 2020-01-05 16:14:46 +01:00
usb ALSA: usb-audio: work around streaming quirk for MacroSilicon MS2109 2020-08-10 12:57:12 +02:00
x86 treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
xen ALSA: xen: Remove superfluous fall through comments 2020-07-09 19:10:37 +02:00
ac97_bus.c ALSA: ac97: Treat snd_ac97_bus_ops as const 2020-01-03 09:24:08 +01:00
Kconfig
last.c
Makefile
sound_core.c