to_si4713_dev 130 drivers/media/radio/si4713/radio-usb-si4713.c struct si4713_usb_device *radio = to_si4713_dev(v4l2_dev); to_si4713_dev 502 drivers/media/radio/si4713/radio-usb-si4713.c struct si4713_usb_device *radio = to_si4713_dev(usb_get_intfdata(intf));