Kaleidoscope/bin/find-device-port-macos

105 lines
3.0 KiB

#!/usr/bin/env perl
# Based on listArduinos.pl from https://github.com/todbot/usbSearch (License: MIT)
# Original (C) 2012, Tod E. Kurt, http://todbot.com/blog/
# This version by Michael Richters <gedankenexperimenter@gmail.com>
use warnings;
use strict;
# ioreg might be more machine-readable than system_profiler, but I haven't been able to
# get it to produce useful output
my @output = qx(/usr/sbin/system_profiler SPUSBDataType);
my $parse_state = 0;
my $device = {};
LINE: foreach my $line (@output) {
chomp $line;
if ( $parse_state == 0 ) {
if ( $line =~ m/Model 01/ ) {
$parse_state = 1;
next LINE;
}
}
if ( $parse_state == 1 ) {
if ( $line =~ m/^\s*$/ ) {
$parse_state = 2;
next LINE;
}
}
if ( $parse_state == 2 ) {
if ( $line =~ m/Serial Number: (.+)$/ ) {
$device->{'serial_number'} = $1;
next LINE;
}
if ( $line =~ m/Location ID: (.+)$/ ) {
$device->{'location_id'} = $1;
next LINE;
}
if ( $line =~ m/Product ID: (.+)$/ ) {
$device->{'product_id'} = $1;
next LINE;
}
if ( $line =~ m/Vendor ID: (.+)$/ ) {
$device->{'vendor_id'} = $1;
next LINE;
}
if ( $line =~ m/^\s*$/ ) {
last LINE;
}
}
}
die "Can't find Model 01" if ( $device == {} );
my $serial_port_name = "";
if ( exists( $device->{'serial_number'} ) ) {
$serial_port_name = "/dev/cu.usbmodem" . $device->{'serial_number'};
if ( -e $serial_port_name ) {
print $serial_port_name;
exit 0;
}
# High Sierra sometimes has a mismatch between the serial number and the device
# filename. I'm not sure why, but system_profiler has a serial number ending in "E",
# whereas the device filename ends in "1". In fact, when I change HID.getShortName()
# to return "kbio02", the final character is replaced with a "1", so we should do the
# same here.
$serial_port_name =~ s/.$/1/;
if ( -e $serial_port_name ) {
print $serial_port_name;
exit 0;
}
}
# Here, also, the final character is always a "1", so if macOS ever stops doing that, this
# will need an update, as well.
if ( exists( $device->{'location_id'} ) ) {
my $loc = substr( $device->{'location_id'}, 2, 3 );
$serial_port_name = "/dev/cu.usbmodem" . $loc . 1;
if ( -e $serial_port_name ) {
print $serial_port_name;
exit 0;
}
}
# If none of the above tests succeeds, just list the directory and see if there are any
# files that have the device shortname that we expect:
foreach my $line (qx(ls /dev/cu.usbmodem*)) {
# If this script gets used for the Model 02 (or anything else that won't end it "1"),
# the line below should probably drop the final character (see above):
if ( $line =~ m/kbio01/ ) {
chomp $line;
print $line;
exit 0;
}
}
die "Can't find Model 01 serial port name";