canonical device number
name to associate with the device
preemption callback
kick callback
interrupt handler
registration flags
driver data
This function is similar to parport_register_device, except that it locates a device by its number rather than by the port it is attached to. See parport_find_device and parport_find_class.
All parameters except for devnum are the same as for parport_register_device. The return value is the same as for parport_register_device.