V4L/DVB (10141): v4l2: debugging API changed to match against driver name instead of ID.

Since the i2c driver ID will be removed in the near future we have to
modify the v4l2 debugging API to use the driver name instead of driver ID.

Note that this API is not used in applications other than v4l2-dbg.cpp
as it is for debugging and testing only.

Should anyone use the old VIDIOC_G_CHIP_IDENT, then this will be logged
with a warning that it is deprecated and will be removed in 2.6.30.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/saa7115.c b/drivers/media/video/saa7115.c
index 22708ec..46c796c 100644
--- a/drivers/media/video/saa7115.c
+++ b/drivers/media/video/saa7115.c
@@ -1371,25 +1371,24 @@
 }
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
-static int saa711x_g_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+static int saa711x_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-	if (!v4l2_chip_match_i2c_client(client,
-				reg->match_type, reg->match_chip))
+	if (!v4l2_chip_match_i2c_client(client, &reg->match))
 		return -EINVAL;
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	reg->val = saa711x_read(sd, reg->reg & 0xff);
+	reg->size = 1;
 	return 0;
 }
 
-static int saa711x_s_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+static int saa711x_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-	if (!v4l2_chip_match_i2c_client(client,
-				reg->match_type, reg->match_chip))
+	if (!v4l2_chip_match_i2c_client(client, &reg->match))
 		return -EINVAL;
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
@@ -1398,7 +1397,7 @@
 }
 #endif
 
-static int saa711x_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
+static int saa711x_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
 {
 	struct saa711x_state *state = to_state(sd);
 	struct i2c_client *client = v4l2_get_subdevdata(sd);