ar_is_open: Check if a file descriptor is still open

In r-arduino/arduino: Simple Library for Reading Serial Ports

Description

This function checks whether a stored file descriptor is still open.

Usage

ar_is_open(fd)

Arguments

fd	File descriptor returned by ar_init(). Should be an integer.

Examples

## Not run: 
con <- ar_init("/dev/cu.SLAB_USBtoUART") 
ar_is_open(con)

## End(Not run)

r-arduino/arduino documentation built on May 16, 2019, 5:02 a.m.