dev_attr_contrast 261 drivers/media/usb/usbvision/usbvision-video.c res = device_create_file(&vdev->dev, &dev_attr_contrast); dev_attr_contrast 290 drivers/media/usb/usbvision/usbvision-video.c device_remove_file(&vdev->dev, &dev_attr_contrast); dev_attr_contrast 172 drivers/video/backlight/lcd.c &dev_attr_contrast.attr, dev_attr_contrast 180 drivers/video/fbdev/wm8505fb.c &dev_attr_contrast.attr,