Provided by: kernel-doc-2.4.27_2.4.27-12_all
register_serial - configure a 16x50 serial port at runtime
int register_serial (struct serial_struct *req);
req request structure
Configure the serial port specified by the request. If the port exists
and is in use an error is returned. If the port is not currently in the
table it is added.
The port is then probed and if neccessary the IRQ is autodetected If
this fails an error is returned.
On success the port is ready to use and the line number is returned.