V4L/DVB (11960): v4l: generate KEY_CAMERA instead of BTN_0 key events on input devices

A bunch of V4L drivers generate BTN_0 instead of KEY_CAMERA key presses.

X11 is able to handle KEY_CAMERA automatically these days while BTN_0 is
not treated at all.  Thus it would be of big benefit if the camera drivers
would consistently generate KEY_CAMERA.  Some drivers (uvc) already do,
this patch updates the remaining drivers to do the same.

I only possess a limited set of webcams, so this isn't tested with all
cameras.  The patch is rather trivial and compile tested, so I'd say it's
still good enough to get merged.

Signed-off-by: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index 7c542caf248e..519a965de23c 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -601,7 +601,7 @@ static void pwc_snapshot_button(struct pwc_device *pdev, int down)
 
 #ifdef CONFIG_USB_PWC_INPUT_EVDEV
         if (pdev->button_dev) {
-                input_report_key(pdev->button_dev, BTN_0, down);
+                input_report_key(pdev->button_dev, KEY_CAMERA, down);
                 input_sync(pdev->button_dev);
         }
 #endif
@@ -1847,7 +1847,7 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
         usb_to_input_id(pdev->udev, &pdev->button_dev->id);
         pdev->button_dev->dev.parent = &pdev->udev->dev;
         pdev->button_dev->evbit[0] = BIT_MASK(EV_KEY);
-        pdev->button_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0);
+        pdev->button_dev->keybit[BIT_WORD(KEY_CAMERA)] = BIT_MASK(KEY_CAMERA);
 
         rc = input_register_device(pdev->button_dev);
         if (rc) {