From: Clemens Ladisch <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== 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 <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- sound/usb/mixer_maps.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index cc2dd1f0decb..0339d464791a 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -322,6 +322,11 @@ 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 */ @@ -409,6 +414,10 @@ 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 */ }; -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
