write-serial-port-char Function

Summary

Writes a character to a serial port.

Package

serial-port

Signature

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

Arguments

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

Values

char	The character char or nil.

Description

The function write-serial-port-char writes the character char to the serial port associated with serial-port, and returns char.

A timeout will occur if the character cannot be written before the write 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 nil is returned. The default value of timeout-error-p is t.

See also

write-serial-port-string