read-serial-port-char Function

Summary

Reads a character from a serial port.

Package

serial-port

Signature

read-serial-port-char serial-port &optional timeout-error-p timeout-char => char

Arguments

serial-port⇩	A serial-port object.
timeout-error-p⇩	A boolean.
timeout-char⇩	A character.

Values

char	A character.

Description

The function read-serial-port-char reads and returns a character from the serial port associated with serial-port.

A timeout will occur if the character is not available before the read timeout (as specified by values given when the serial port was opened by open-serial-port).

When a timeout occurs, if timeout-error-p is non-nil, then an error of type serial-port-timeout is signaled, otherwise timeout-char is returned. The default value of timeout-error-p is t.

See also

read-serial-port-string