REG_SF_USR_EXPOSURE_L  179 drivers/media/i2c/s5k5baf.c #define REG_SF_USR_EXPOSURE_L		0x03bc
REG_SF_USR_EXPOSURE_L  131 drivers/media/i2c/s5k6aa.c #define REG_SF_USR_EXPOSURE_L		0x03c6