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-setserial Version 2.10
-
-Setserial is a program which allows you to look at and change various
-attributes of a serial device, including its port, its IRQ, and other
-serial port options.
-
-Starting with Linux 0.99 pl10, only the COM1-4 ports are configured,
-using the default IRQ of 4 and 3. So, if you have any other serial
-ports provided by other boards (such as an AST Fourport), or if COM3-4
-have been a non-standard IRQ so that you can use time simultaneously
-with COM1-2, you *must* use this program in order to configure those
-serial ports.
-
-The simplest way to configure the serial ports is to copy the provided
-rc.serial file to /etc/rc.serial, and then add to /etc/rc the lines:
-
-if [ -f /etc/rc.serial ]; then
-sh /etc/rc.serial
-fi
-
-Take a look at /etc/rc.serial; it was written to be relatively easy to
-modify, and you may need to modify it so that it works best in your
-environment.
-
-
--------------------------------------------------------
-
-Here is setserial's command line syntax:
-
-usage: ./setserial [-abgqvVW] serial-device [cmd1 [arg]] [cmd2] ...
-
-Available options:
- -a Display all possible information about the port
- -b Display boot-time level of information
- -q Quiet flag
- -v Verbose flag
-
- -g Get and display the serial information of all
- serial ports on the machine
- -V Display the current Version and then exit
-
- -W Do wild interrupt initialization and then exit
-
-Available commands: (* = Takes an argument)
- (^ = can be preceded by a '^' to turn off the option)
- * port set the I/O port
- * irq set the interrupt
- * uart set UART type (none, 8250, 16450, 16550, 16550A
- * baud_base set base baud rate (CLOCK_FREQ / 16)
- * divisor set the custom divisor (see spd_custom)
- ^ fourport configure the port as an AST Fourport
- autoconfigure automatically configure the serial port
- ^ auto_irq try to determine irq during autoconfiguration
- ^ skip_test skip UART test during autoconfiguration
-
- ^ sak set the break key as the Secure Attention Key
- ^ session_lockout Lock out callout port across different sessions
- ^ pgrp_lockout Lock out callout port across different process groups
- ^ split_termios Use separate termios for callout and dailin lines
- ^ hup_notify Notify a process blocked on opening a dialin line
- when a process has finished using a callout
- line by returning EAGAIN to the open.
- ^ callout_nohup Don't hangup the tty if carrier detect drops on a
- callout line.
-
- spd_hi use 56kb instead of 38.4kb
- spd_vhi use 115kb instead of 38.4kb
- spd_cust use the custom divisor to set the speed at 38.4kb
- (baud rate = baud_base / custom_divisor)
- spd_normal use 38.4kb when a buad rate of 38.4kb is selected
-
-Use a leading '0x' for hex numbers.
-CAUTION: Using an invalid port can lock up your machine!