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b When reporting the configuration of a serial device, print a summary of the device's configuration, which might be suitable for printing during the bootup process, during the /etc/rc script. OPTIONS Setserial accepts the following options: -a When reporting the configuration of a serial device, print all available information. A few serial port parameters can be set by normal users, however, and these will be noted as exceptions in this manual page. Without the -g option, the first argument to setserial is interpreted as the device to be modified or characteristics to be printed, and any additional arguments are interpreted as parameters which should be assigned to that serial device.įor the most part, superuser privilege is required to set the configuration parameters of a serial port. If the -g option is given, the arguments to setserial are interpreted as a list of devices for which the characteristics of those devices should be printed. , 8250, 16450, 16550, 16550A, etc.), the hardware I/O port, the hardware IRQ line, its 'baud base,' and some of its operational flags. If no parameters are specified, setserial will print out the port type (i.e. Examples: /dev/ttyS0, /dev/ttyS1, /dev/ttyS2, /dev/ttyS3, etc. The device argument specifies which device to configure or to interrogate.

Typically it is called from an setserial script, which is usually run out of. In order to initialize any additional serial ports, or to change the COM 1-4 ports to a nonstandard configuration, the setserial program should be used. During the normal bootup process, only COM ports 1-4 are initialized, using the default I/O ports and IRQ values, as listed below. This information includes what I/O port and IRQ a particular serial port is using, and whether or not the break key should be interpreted as the Secure Attention Key, and so on. (redhat 7.1) My port info: cat tty/driver/serial 0: uart:16550A.ĭESCRIPTION setserial is a program designed to set and/or report the configuration information associated with a serial port. Can someone can help on how to set the port speed to 57600 I would appreciate it. Does anybody know how to set the serial baud rate to 4800. I am using the command 'setserial /dev/ttyS0 Baud_Base 4800” to set the serial port baud rate to 4800. Introduction to Linux - A Hands on Guide This guide was.

Provided by: NAME setserial - get/set Linux serial port information SYNOPSIS setserial device ].

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