ALSA: usb-audio: ignore-quirk for HP Wireless Audio

As Joe Cooper <swelljoe@gmail.com> reported, "On most HP Envy laptops
the snd-usb-audio module causes the system to become unresponsive and
Gnome Shell 3 to crash.".
See also:
 http://mailman.alsa-project.org/pipermail/alsa-devel/2012-December/057729.html

Add a quirk to ignore this device (for now) to solve the instability
issue and allow other USB audio devices to be used.

Reported-by: Joe Cooper <swelljoe@gmail.com>
Tested-by: Isaac Smith <hunternet93@gmail.com>
Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 49f9af9..579cf6f 100644 (file)
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -99,6 +99,42 @@
 },
 
 /*
+ * HP Wireless Audio
+ * When not ignored, causes instability issues for some users, forcing them to
+ * blacklist the entire module.
+ */
+{
+       USB_DEVICE(0x0424, 0xb832),
+       .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+               .vendor_name = "Standard Microsystems Corp.",
+               .product_name = "HP Wireless Audio",
+               .ifnum = QUIRK_ANY_INTERFACE,
+               .type = QUIRK_COMPOSITE,
+               .data = (const struct snd_usb_audio_quirk[]) {
+                       /* Mixer */
+                       {
+                               .ifnum = 0,
+                               .type = QUIRK_IGNORE_INTERFACE,
+                       },
+                       /* Playback */
+                       {
+                               .ifnum = 1,
+                               .type = QUIRK_IGNORE_INTERFACE,
+                       },
+                       /* Capture */
+                       {
+                               .ifnum = 2,
+                               .type = QUIRK_IGNORE_INTERFACE,
+                       },
+                       /* HID Device, .ifnum = 3 */
+                       {
+                               .ifnum = -1,
+                       }
+               }
+       }
+},
+
+/*
  * Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface
  * class matches do not take effect without an explicit ID match.
  */