fw_cdev_send_request  394 include/uapi/linux/firewire-cdev.h #define FW_CDEV_IOC_SEND_REQUEST        _IOW('#', 0x01, struct fw_cdev_send_request)
fw_cdev_send_request  415 include/uapi/linux/firewire-cdev.h #define FW_CDEV_IOC_SEND_BROADCAST_REQUEST       _IOW('#', 0x12, struct fw_cdev_send_request)