X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fmedia%2Fv4l2-i2c-drv.h;h=efdc8bf27f87cc3aa09ca51e1e41459d1434d485;hb=72441bdc76f7f71d7b75cdaa48f26dbb1f3d932e;hp=7b6f06be795034d7ae64b385bfa9ef0eac4078c9;hpb=a815752ac0ffdb910e92958d41d28f4fb28e5296;p=mv-sheeva.git

diff --git a/include/media/v4l2-i2c-drv.h b/include/media/v4l2-i2c-drv.h
index 7b6f06be795..efdc8bf27f8 100644
--- a/include/media/v4l2-i2c-drv.h
+++ b/include/media/v4l2-i2c-drv.h
@@ -21,6 +21,17 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+/* NOTE: the full version of this header is in the v4l-dvb repository
+ * and allows v4l i2c drivers to be compiled on older kernels as well.
+ * The version of this header as it appears in the kernel is a stripped
+ * version (without all the backwards compatibility stuff) and so it
+ * looks a bit odd.
+ *
+ * If you look at the full version then you will understand the reason
+ * for introducing this header since you really don't want to have all
+ * the tricky backwards compatibility code in each and every i2c driver.
+ */
+
 #ifndef __V4L2_I2C_DRV_H__
 #define __V4L2_I2C_DRV_H__
 
@@ -36,6 +47,7 @@ struct v4l2_i2c_driver_data {
 	int (*resume)(struct i2c_client *client);
 	int (*legacy_probe)(struct i2c_adapter *adapter);
 	int legacy_class;
+	const struct i2c_device_id *id_table;
 };
 
 static struct v4l2_i2c_driver_data v4l2_i2c_data;
@@ -53,6 +65,7 @@ static int __init v4l2_i2c_drv_init(void)
 	v4l2_i2c_driver.remove = v4l2_i2c_data.remove;
 	v4l2_i2c_driver.suspend = v4l2_i2c_data.suspend;
 	v4l2_i2c_driver.resume = v4l2_i2c_data.resume;
+	v4l2_i2c_driver.id_table = v4l2_i2c_data.id_table;
 	return i2c_add_driver(&v4l2_i2c_driver);
 }