[media] s2250: add comment describing the hardware
authorHans Verkuil <hans.verkuil@cisco.com>
Thu, 7 Mar 2013 07:58:35 +0000 (04:58 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Sun, 24 Mar 2013 15:54:04 +0000 (12:54 -0300)
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/staging/media/go7007/s2250-board.c

index cb364273ae8f1a3e6e93b528a5f7fec362feb7f9..beaa98b9c85a95e64c0c003ef79f2f568eb2566a 100644 (file)
 MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
 MODULE_LICENSE("GPL v2");
 
+/*
+ * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
+ * Due to the unusual way these are accessed on this device we do not
+ * reuse the i2c drivers, but instead they are implemented in this
+ * driver. It would be nice to improve on this, though.
+ */
+
 #define TLV320_ADDRESS      0x34
 #define VPX322_ADDR_ANALOGCONTROL1     0x02
 #define VPX322_ADDR_BRIGHTNESS0                0x0127