X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fmedia%2Fv4l2-i2c-drv-legacy.h;h=e65dd9d84e8b1ee80f6f262c930fa0369ca743ac;hb=c322b28a04c084a467a862766f74c40c917a721c;hp=975ffbf4e2c537a93cd6e9fc50de12df0c1a104b;hpb=f8b71a3a92d69cb1c9c2162f9235d3dd550e4aa0;p=linux-2.6-omap-h63xx.git

diff --git a/include/media/v4l2-i2c-drv-legacy.h b/include/media/v4l2-i2c-drv-legacy.h
index 975ffbf4e2c..e65dd9d84e8 100644
--- a/include/media/v4l2-i2c-drv-legacy.h
+++ b/include/media/v4l2-i2c-drv-legacy.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.
+ */
+
 struct v4l2_i2c_driver_data {
 	const char * const name;
 	int driverid;