usb_stream_hwdep_ioctl 433 sound/usb/usx2y/us122l.c hw->ops.ioctl = usb_stream_hwdep_ioctl; usb_stream_hwdep_ioctl 434 sound/usb/usx2y/us122l.c hw->ops.ioctl_compat = usb_stream_hwdep_ioctl;