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77 lines
1.7 KiB
77 lines
1.7 KiB
#!/usr/bin/env perl
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use warnings;
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use strict;
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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);
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my $parse_state = 0;
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my $device = {};
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LINE: foreach my $line (@output) {
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chomp $line;
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if ( $parse_state == 0 ) {
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if ( $line =~ m/Model 01/ ) {
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$parse_state = 1;
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next LINE;
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}
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}
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if ( $parse_state == 1 ) {
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if ( $line =~ m/^\s*$/ ) {
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$parse_state = 2;
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next LINE;
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}
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}
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if ( $parse_state == 2 ) {
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if ( $line =~ m/Serial Number: (.+)$/ ) {
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$device->{'serial_number'} = $1;
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next LINE;
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}
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if ( $line =~ m/Location ID: (.+)$/ ) {
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$device->{'location_id'} = $1;
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next LINE;
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}
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if ( $line =~ m/Product ID: (.+)$/ ) {
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$device->{'product_id'} = $1;
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next LINE;
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}
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if ( $line =~ m/Vendor ID: (.+)$/ ) {
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$device->{'vendor_id'} = $1;
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next LINE;
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}
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if ( $line =~ m/^\s*$/ ) {
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last LINE;
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}
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}
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}
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die "Can't find Model 01" if ( $device == {} );
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my $serial_port_name = "";
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if ( exists( $device->{'serial_number'} ) ) {
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$serial_port_name = "/dev/cu.usbmodem" . $device->{'serial_number'};
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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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if ( exists( $device->{'location_id'} ) ) {
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my $loc = substr( $device->{'location_id'}, 2, 4 );
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$serial_port_name = "/dev/cu.usbmodem" . $loc . 1;
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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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die "Can't find Model 01 serial port name";
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