CONTRAST_DEFAULT  196 drivers/media/usb/em28xx/em28xx-video.c 	em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
CONTRAST_DEFAULT 2729 drivers/media/usb/em28xx/em28xx-video.c 				  0, 0x1f, 1, CONTRAST_DEFAULT);