to_keene_dev
struct keene_device *radio = to_keene_dev(usb_get_intfdata(intf));
struct keene_device *radio = to_keene_dev(usb_get_intfdata(intf));
struct keene_device *radio = to_keene_dev(usb_get_intfdata(intf));
struct keene_device *radio = to_keene_dev(v4l2_dev);