At Mon, 30 Apr 2007 04:13:00 +0100 (BST), Daniel Drake wrote: > > Commit 93c8bf45e083b89dffe3a708363c15c1b220c723 modified the USB device > matching behaviour to ignore interface class matches if the device class > is vendor-specific. > > This patch adds an explicit ID match for the Logitech QuickCam Messenger, > which has a vendor specific device class (but standards-compliant audio > interfaces). > > This fixes a 2.6.20 regression where the audio component of this device was > no longer usable. > > http://bugs.gentoo.org/show_bug.cgi?id=175715 > https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/93822 > https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3040 > > Based on a patch from sergiom > > Signed-off-by: Daniel Drake <dsd@xxxxxxxxxx> Thanks, I now applied it to ALSA tree. Takashi > > Index: linux/sound/usb/usbquirks.h > =================================================================== > --- linux.orig/sound/usb/usbquirks.h > +++ linux/sound/usb/usbquirks.h > @@ -40,6 +40,21 @@ > .bInterfaceClass = USB_CLASS_VENDOR_SPEC > > /* > + * Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface > + * class matches do not take effect without an explicit ID match. > + */ > + > +{ > + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | > + USB_DEVICE_ID_MATCH_INT_CLASS | > + USB_DEVICE_ID_MATCH_INT_SUBCLASS, > + .idVendor = 0x046d, > + .idProduct = 0x08f0, > + .bInterfaceClass = USB_CLASS_AUDIO, > + .bInterfaceSubClass = USB_SUBCLASS_AUDIO_CONTROL > +}, > + > +/* > * Yamaha devices > */ > > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
