V4L/DVB: gspca_main: Allow use of input device creation code for non …

…int. inputs

Allow use of the gspca core input device creation code by subdrivers which
have non interrupt driven camera buttons.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/gspca.c

@@ -158,7 +158,7 @@ static int gspca_input_connect(struct gspca_dev *dev)
 	int err = 0;
 
 	dev->input_dev = NULL;
-	if (dev->sd_desc->int_pkt_scan)  {
+	if (dev->sd_desc->int_pkt_scan || dev->sd_desc->other_input)  {
 		input_dev = input_allocate_device();
 		if (!input_dev)
 			return -ENOMEM;

drivers/media/video/gspca/gspca.h

@@ -131,6 +131,9 @@ struct sd_desc {
 	cam_ident_op get_chip_ident;
 #ifdef CONFIG_INPUT
 	cam_int_pkt_op int_pkt_scan;
+	/* other_input makes the gspca core create gspca_dev->input even when
+	   int_pkt_scan is NULL, for cams with non interrupt driven buttons */
+	u8 other_input;
 #endif
 };