Node:serial, Next:setkey, Previous:rarp, Up:General commands
Initialize a serial device. unit is a number in the range 0-3
specifying which serial port to use; default is 0, that corresponds
the port often called COM1. port is the I/O port where the UART
is to be found; if specified it takes precedence over unit.
speed is the transmission speed; default is 9600. word and
stop are the number of data bits and stop bits. Data bits must
be in the range 5-8 and stop bits are 1 or 2. Default is 8 data bits
and one stop bit. parity is one of |
The serial port is not used as a communication channel unless the
This command is only available if GRUB is compiled with serial support. See also Serial terminal.