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ALSA: usb-audio: Avoid applying boot quirk for Behringer UMC204HD

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There have been reports about a regression with the recent boot quirk
for Behringer devices; it broke UMC204HD models(1397:0508 and
1397:0509).  The quirk was to just run usb_get_descriptor(), so I
expected it rather harmful, but in this case, it doesn't look so,
resulting in an error like 'failed to read device descriptor: -110'
that leads to a fatal probe error.

As a quick workaround, skip the quirk for those UMC204HD models.

Fixes: b5c4823cf3 ("ALSA: usb-audio: Apply boot quirk for Behringer models generically")
Reported-by: Will Bush <will@willbush.dev>
Closes: https://lore.kernel.org/45162613-2802-401c-84c9-742f9c8c68e6@app.fastmail.com
Closes: https://bugzilla.suse.com/show_bug.cgi?id=1285896
Link: https://patch.msgid.link/20261019102347.2425406-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2026-10-19 12:23:38 +02:00
parent d5dd05c1f7
commit e88f4749c0
1 changed files with 8 additions and 1 deletions
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9
sound/usb/quirks.c
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@ -1790,8 +1790,15 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev,
} }
/* Behringer devices may need explicit device descriptor read at boot */ /* Behringer devices may need explicit device descriptor read at boot */
if (USB_ID_VENDOR(id) == 0x1397) if (USB_ID_VENDOR(id) == 0x1397) {
/* the quirk seems breaking on some Behringer devices */
switch (id) {
case USB_ID(0x1397, 0x0508): /* UMC204HD */
case USB_ID(0x1397, 0x0509): /* UMC204HD */
return 0;
}
return snd_usb_cm1a_boot_quirk(dev); return snd_usb_cm1a_boot_quirk(dev);
}
return 0; return 0;
} }