linux/sound
Arvind Sankar 93f9d1a4ac ALSA: usb-audio: Apply sample rate quirk for Audioengine D1
The Audioengine D1 (0x2912:0x30c8) does support reading the sample rate,
but it returns the rate in byte-reversed order.

When setting sampling rate, the driver produces these warning messages:
[168840.944226] usb 3-2.2: current rate 4500480 is different from the runtime rate 44100
[168854.930414] usb 3-2.2: current rate 8436480 is different from the runtime rate 48000
[168905.185825] usb 3-2.1.2: current rate 30465 is different from the runtime rate 96000

As can be seen from the hexadecimal conversion, the current rate read
back is byte-reversed from the rate that was set.

44100 == 0x00ac44, 4500480 == 0x44ac00
48000 == 0x00bb80, 8436480 == 0x80bb00
96000 == 0x017700,   30465 == 0x007701

Rather than implementing a new quirk to reverse the order, just skip
checking the rate to avoid spamming the log.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200211162235.1639889-1-nivedita@alum.mit.edu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-02-11 20:13:28 +01:00
..
ac97 ALSA: ac97: Constify snd_ac97_bus_ops definitions 2020-01-03 09:24:11 +01:00
aoa ALSA: aoa: More constifications 2020-01-05 16:14:27 +01:00
arm ALSA: arm: More constification 2020-01-05 16:15:07 +01:00
atmel ALSA: atmel: Constify snd_ac97_bus_ops definitions 2020-01-03 09:24:12 +01:00
core sound fixes for 5.6-rc1 2020-02-06 14:15:01 +00:00
drivers sound fixes for 5.6-rc1 2020-02-06 14:15:01 +00:00
firewire Merge branch 'for-linus' into for-next 2020-01-20 11:44:51 +01:00
hda ALSA: hda: Reset stream if DMA RUN bit not cleared 2020-01-28 10:29:41 +01:00
i2c ALSA: i2c: Constify snd_kcontrol_new items 2020-01-03 09:24:24 +01:00
isa sound updates for 5.6-rc1 2020-01-28 16:26:57 -08:00
mips ALSA: mips: Constify snd_device_ops definitions 2020-01-03 09:24:02 +01:00
oss compat_ioctl: remove translation for sound ioctls 2019-10-23 17:23:45 +02:00
parisc sound updates for 5.6-rc1 2020-01-28 16:26:57 -08:00
pci sound fixes for 5.6-rc1 2020-02-06 14:15:01 +00:00
pcmcia ALSA: pdaudiocf: More constification 2020-01-05 16:15:13 +01:00
ppc ALSA: ppc: More constifications 2020-01-05 16:14:43 +01:00
sh ALSA: sh: Fix compile warning wrt const 2020-01-05 16:15:14 +01:00
soc sound fixes for 5.6-rc1 2020-02-06 14:15:01 +00:00
sparc ALSA: sparc: More constifications 2020-01-05 16:14:56 +01:00
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: Apply sample rate quirk for Audioengine D1 2020-02-11 20:13:28 +01:00
x86 sound updates for 5.6-rc1 2020-01-28 16:26:57 -08:00
xen ALSA: xen: Drop superfluous ioctl PCM ops 2019-12-11 07:25:35 +01:00
ac97_bus.c ALSA: ac97: Treat snd_ac97_bus_ops as const 2020-01-03 09:24:08 +01:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
last.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
Makefile
sound_core.c sound: fix a memory leak bug 2019-08-08 08:18:32 +02:00