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How to configure a serial port?

I use Linux as a programming platform. And I want to create a program that uses the serial port (/ dev / ttyS0) as the communication medium. I already know how to open, read, write and close the serial port using the standard Linux function.

Now my question is: how can I configure the serial port? I want to say that I want to programmatically change the parameters of a serial device.

Many thanks.

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3 answers

The human page you should read is termios (3). It describes the POSIX functions for controlling the discipline of the TTY line in which the serial parameters reside.

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tcgetattr() tcsetattr(), , ..

I/O . . select() poll().

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This link: http://www.easysw.com/~mike/serial/serial.html You will find a bunch of useful information.

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Source: https://habr.com/ru/post/1748501/

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