From: Jurgen Kramer Date: Sat, 15 Nov 2014 13:01:21 +0000 (+0100) Subject: ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~85^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e84a8d7ac3ba246ef44e313e92bc16a1da1b04a;p=pandora-kernel.git ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices This patch adds a USB control message delay quirk for a few specific Marantz/Denon devices. Without the delay the DACs will not work properly and produces the following type of messages: Nov 15 10:09:21 orwell kernel: [ 91.342880] usb 3-13: clock source 41 is not valid, cannot use Nov 15 10:09:21 orwell kernel: [ 91.343775] usb 3-13: clock source 41 is not valid, cannot use There are likely other Marantz/Denon devices using the same USB module which exhibit the same problems. But as this cannot be verified I limited the patch to the devices I could test. The following two devices are covered by this path: - Marantz SA-14S1 - Marantz HD-DAC1 Signed-off-by: Jurgen Kramer Cc: Signed-off-by: Takashi Iwai --- Reading git-diff-tree failed