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Kaleidoscope/bin/find-device-port-linux-udev

32 lines
782 B

#!/usr/bin/env perl
use warnings;
use strict;
my $vid = shift;
my $pid = shift;
my $prefix = '/dev/serial/by-id/';
my @paths = `ls $prefix`;
my %devices;
for my $path (@paths) {
chomp($path);
next unless -l $prefix . $path;
my @data = `udevadm info -q property --name=${prefix}${path}`;
for my $line (@data) {
chomp($line);
my ( $key, $val ) = split( /=/, $line, 2 );
$devices{$path}{$key} = $val;
}
if ( ( hex $devices{$path}{'ID_VENDOR_ID'} == hex $vid )
&& ( hex $devices{$path}{'ID_MODEL_ID'} == hex $pid ) )
{
if ( $devices{$path}{'ID_MM_CANDIDATE'} ) {
warn "Yikes. ModemManager wants to pwn your keyboard";
}
print $devices{$path}{DEVNAME};
exit(0);
}
}