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Commit 825786f7 authored by Jonas Hahnfeld's avatar Jonas Hahnfeld Committed by Greg Kroah-Hartman
Browse files

ALSA: usb-audio: Add quirk for VF0770 



commit 48827e1d6af58f219e89c7ec08dccbca28c7694e upstream.

The device advertises 8 formats, but only a rate of 48kHz is honored
by the hardware and 24 bits give chopped audio, so only report the
one working combination. This fixes out-of-the-box audio experience
with PipeWire which otherwise attempts to choose S24_3LE (while
PulseAudio defaulted to S16_LE).

Signed-off-by: default avatarJonas Hahnfeld <hahnjo@hahnjo.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211012200906.3492-1-hahnjo@hahnjo.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 43d93325

sound/usb/quirks-table.h

+42 −0
Original line number Diff line number Diff line
@@ -125,6 +125,48 @@ 
	.bInterfaceClass = USB_CLASS_AUDIO,

},



/*

 * Creative Technology, Ltd Live! Cam Sync HD [VF0770]

 * The device advertises 8 formats, but only a rate of 48kHz is honored by the

 * hardware and 24 bits give chopped audio, so only report the one working

 * combination.

 */

{

	USB_DEVICE(0x041e, 0x4095),

	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {

		.ifnum = QUIRK_ANY_INTERFACE,

		.type = QUIRK_COMPOSITE,

		.data = &(const struct snd_usb_audio_quirk[]) {

			{

				.ifnum = 2,

				.type = QUIRK_AUDIO_STANDARD_MIXER,

			},

			{

				.ifnum = 3,

				.type = QUIRK_AUDIO_FIXED_ENDPOINT,

				.data = &(const struct audioformat) {

					.formats = SNDRV_PCM_FMTBIT_S16_LE,

					.channels = 2,

					.fmt_bits = 16,

					.iface = 3,

					.altsetting = 4,

					.altset_idx = 4,

					.endpoint = 0x82,

					.ep_attr = 0x05,

					.rates = SNDRV_PCM_RATE_48000,

					.rate_min = 48000,

					.rate_max = 48000,

					.nr_rates = 1,

					.rate_table = (unsigned int[]) { 48000 },

				},

			},

			{

				.ifnum = -1

			},

		},

	},

},



/*

 * HP Wireless Audio

 * When not ignored, causes instability issues for some users, forcing them to