| Message ID | 1393421110-6457-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index e71fe55..2dafe18 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -313,6 +313,11 @@ static struct usbmix_name_map hercules_usb51_map[] = { { 0 } /* terminator */ }; +static const struct usbmix_name_map kef_x300a_map[] = { + { 10, NULL }, /* firmware locks up (?) when we try to access this FU */ + { 0 } +}; + /* * Control map entries */ @@ -392,6 +397,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = { .id = USB_ID(0x200c, 0x1018), .map = ebox44_map, }, + { + .id = USB_ID(0x27ac, 0x1000), + .map = kef_x300a_map, + }, { 0 } /* terminator */ };
This is a note to let you know that I have just added a patch titled ALSA: usb-audio: work around KEF X300A firmware bug to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From 9d631d7b27deaeacea1742771c0325091c22efd0 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch <clemens@ladisch.de> Date: Sun, 16 Feb 2014 17:11:10 +0100 Subject: ALSA: usb-audio: work around KEF X300A firmware bug commit 624aef494f86ed0c58056361c06347ad62b26806 upstream. When the driver tries to access Function Unit 10, the KEF X300A speakers' firmware apparently locks up, making even PCM streaming impossible. Work around this by ignoring this FU. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> [ luis: backported to 3.5: adjusted context ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- sound/usb/mixer_maps.c | 9 +++++++++ 1 file changed, 9 insertions(+) -- 1.9.0