REG_USER_CONTRAST   46 drivers/media/i2c/s5k4ecgx.c #define REG_USER_CONTRAST		0x7000022e
REG_USER_CONTRAST  114 drivers/media/i2c/s5k5baf.c #define REG_USER_CONTRAST		0x01e6
REG_USER_CONTRAST   83 drivers/media/i2c/s5k6aa.c #define REG_USER_CONTRAST		0x01e6