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I have tty device in /dev , where I send AT commands. I want to read line by line and stop reading file after timeout.
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You can use the program
sttyto configure the tty device. To see the settings for terminal /dev/ttyS0, trystty -a -F /dev/ttyS0The default settings regarding timeout are
min = 1; time = 0, which means that the reading program will read until at least one character has been read and there is no timeout. Using e.g.stty -F /dev/ttyS0 min 0 time 10the reading program (e.g.
cat) will finish reading after one second whether anything has been read or not. The unit for the parametertimeis tenths of a second; you can check outman sttyfor more information.