Linux::Input 1.02

Linux::Input is a Linux input event interface.

SYNOPSIS

Example: 1 joystick using event API

my $js1 = Linux::Input->new(/dev/input/event3);
while (1) {
while (my @events = $js1->poll(0.01)) {
foreach (@event) {
}
}
}

Example: 2 joysticks using joystick API (different event structure)

my $js1 = Linux::Input::Joystick->new(/dev/input/js0);
my $js2 = Linux::Input::Joystick->new(/dev/input/js1);
my $selector = IO::Select->new();
$selector->add($js1->fh);
$selector->add($js2->fh);

while (my $fh = $selector->can_read) {
my @event;
if ($fh == $js1->fh) {
@event = $js1->poll()
} elsif ($fh == $js2->fh) {
@event = $js2->poll()
}
foreach (@event) {
# work
}
}

Example 3: monitor all input devices

use File::Basename qw(basename);
my @inputs = map { "/dev/input/" . basename($_) }
;

my @dev;
my $selector = IO::Select->new();
foreach (@inputs) {
my $device = Linux::Input->new($_);
$selector->add($device->fh);
push @dev, $device;
}

while (my $fh = $selector->can_read) {
# work
}

Example 4: testing for events on the command line

# information on what event queue belongs to what device
cat /proc/bus/input/devices

# verify that events are coming in
sudo evtest.pl /dev/input/event*