CTRL_CONTRAST 171 drivers/media/usb/hdpvr/hdpvr-control.c hdpvr_config_call(dev, CTRL_CONTRAST, dev->options.contrast); CTRL_CONTRAST 909 drivers/media/usb/hdpvr/hdpvr-video.c ret = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->val);