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114 lines
3.3 KiB
114 lines
3.3 KiB
#!/usr/bin/env perl
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# Based on listArduinos.pl from https://github.com/todbot/usbSearch (License: MIT)
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# Original (C) 2012, Tod E. Kurt, http://todbot.com/blog/
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# This version by Michael Richters <gedankenexperimenter@gmail.com> and Jesse Vincent <jesse@keyboard.io>
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use warnings;
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use strict;
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my $vid = shift @ARGV;
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my $pid = shift @ARGV;
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if (!defined $vid || !defined $pid) {
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die "$0 has two required parameters, VID and PID";
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}
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# ioreg might be more machine-readable than system_profiler, but I haven't been able to
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# get it to produce useful output
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my @output = qx(/usr/sbin/system_profiler SPUSBDataType 2> /dev/null);
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my $serial = "";
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my $location = "";
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my $output = join('', @output);
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my @stanzas = split(/\n\n/, $output);
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foreach my $stanza (@stanzas) {
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if ($stanza =~ /Product ID: ${pid}/ && $stanza =~ /Vendor ID: ${vid}/) {
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if ($stanza =~ /Serial Number: (.*?)$/m) {
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$serial = $1;
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}
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if ($stanza =~ /Location ID: (.*?)$/m) {
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$location = $1;
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}
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if ($serial) {
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try_for_raw_serialnum($serial);
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}
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if ($location) {
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try_for_location_id($location);
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}
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if ($serial) {
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try_for_sn_prefix($serial);
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}
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}
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}
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sub try_for_raw_serialnum {
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my $sn = shift;
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my $serial_port_name = "/dev/cu.usbmodem" . $sn;
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exit_with_port_if_exists($serial_port_name);
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# High Sierra sometimes has a mismatch between the serial number and the device
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# filename. I'm not sure why, but system_profiler has a serial number ending in "E",
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# whereas the device filename ends in "1". In fact, when I change HID.getShortName()
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# to return "kbio02", the final character is replaced with a "1".
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if ($serial_port_name =~ /\d$/) {
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chop $serial_port_name;
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exit_with_port_if_exists($serial_port_name . "1");
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} else {
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# If the serial port name doesn't end with a digit, try -appending- rather than replacing
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# the last character of the port name
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exit_with_port_if_exists($serial_port_name . "1");
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# and if that didn't work, try replacing the last character with a "1" anyway.
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# Jason Koh reports that he saw this behavior as required on Catalina in May 2020.
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chop $serial_port_name;
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exit_with_port_if_exists($serial_port_name . "1");
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}
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}
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sub try_for_location_id {
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my $location_id = shift;
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# macOS truncates the string of "0"s from the right of the location id.
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# Here, also, the final character is an appended "1", so if macOS ever stops doing that,
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# this will need an update, as well.
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if ($location_id =~ /0x(\d+?)0*\b/) {
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my $loc = $1;
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exit_with_port_if_exists("/dev/cu.usbmodem" . $loc . "1");
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}
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}
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sub try_for_sn_prefix {
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my $sn = shift;
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# If macOS has appended 'E', take it off to maximise our chances of a match.
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$sn =~ s/E$//;
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# If none of the above tests succeeds, just list the directory and see if there are any
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# files that have the device shortname that we expect:
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foreach my $line (qx(ls /dev/cu.usbmodem*)) {
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if ($line =~ /${sn}/) {
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chomp $line;
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print $line;
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exit 0;
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}
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}
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}
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sub exit_with_port_if_exists {
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my $serial_port_name = shift;
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if (-e $serial_port_name) {
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print $serial_port_name;
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exit 0;
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}
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}
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