summaryrefslogtreecommitdiff
path: root/drivers/media/usb/em28xx/em28xx-input.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <m.chehab@samsung.com>2014-01-06 12:27:47 +0400
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-01-07 11:14:50 +0400
commit822b8deab870f8edc2d8a1848f61c054a8188de6 (patch)
treecf25672e6b74c037089a6c679163ca967a7460c3 /drivers/media/usb/em28xx/em28xx-input.c
parentd8992b0931c1f9b1254d57b26b2965327337e7c6 (diff)
downloadlinux-822b8deab870f8edc2d8a1848f61c054a8188de6.tar.xz
[media] em28xx: prevent registering wrong interfaces for audio-only
A few devices (em2860) use a separate interface for audio only Audio Vendor Class USB. That interface should not be used by Remote Controller, Analog TV or Digital TV. Prevents initializing all non-audio extensions for the audio only interface. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-input.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-input.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
index f3b629dd57ae..9a5dad96ff08 100644
--- a/drivers/media/usb/em28xx/em28xx-input.c
+++ b/drivers/media/usb/em28xx/em28xx-input.c
@@ -673,6 +673,11 @@ static int em28xx_ir_init(struct em28xx *dev)
u64 rc_type;
u16 i2c_rc_dev_addr = 0;
+ if (dev->is_audio_only) {
+ /* Shouldn't initialize IR for this interface */
+ return 0;
+ }
+
if (dev->board.buttons)
em28xx_init_buttons(dev);
@@ -802,6 +807,11 @@ static int em28xx_ir_fini(struct em28xx *dev)
{
struct em28xx_IR *ir = dev->ir;
+ if (dev->is_audio_only) {
+ /* Shouldn't initialize IR for this interface */
+ return 0;
+ }
+
em28xx_shutdown_buttons(dev);
/* skip detach on non attached boards */