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: Jonas Hahnfeld <hahnjo@hahnjo.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211012200906.3492-1-hahnjo@hahnjo.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 441335abb40187cafbc068ef861852da46757e0a..9620ae0003ce4aac7e697b460dd928de315dca44 100644 (file)
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -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