| Message ID | 5300E31E.9070600@ladisch.de (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Takashi Iwai |
| Headers | show |
At Sun, 16 Feb 2014 17:11:10 +0100, Clemens Ladisch wrote: > > 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. > > Cc: <stable@vger.kernel.org> > Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Thanks, applied. Takashi > --- > 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 32af6b7..d1d72ff 100644 > --- a/sound/usb/mixer_maps.c > +++ b/sound/usb/mixer_maps.c > @@ -328,6 +328,11 @@ static struct usbmix_name_map gamecom780_map[] = { > {} > }; > > +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 > */ > @@ -419,6 +424,10 @@ 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 */ > }; >
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index 32af6b7..d1d72ff 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -328,6 +328,11 @@ static struct usbmix_name_map gamecom780_map[] = { {} }; +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 */ @@ -419,6 +424,10 @@ 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 */ };
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. Cc: <stable@vger.kernel.org> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> --- sound/usb/mixer_maps.c | 9 +++++++++ 1 file changed, 9 insertions(+)