/usr/lib/x86_64-linux-gnu/perl5/5.20/Device/USB/DevEndpoint.pm is in libdevice-usb-perl 0.36-3+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | package Device::USB::DevEndpoint;
require 5.006;
use warnings;
use strict;
use Carp;
=head1 Device::USB::DevEndpoint
This class encapsulates a USB Device endpoint and the methods that object
would support.
=head1 NAME
Device::USB::DevEndpoint - Access a device endpoint returned by libusb.
=head1 VERSION
Version 0.36
=cut
our $VERSION=0.36;
=head1 SYNOPSIS
Device::USB:DevEndpoint provides a Perl object for accessing an endpoint
of an interface of a USB device using the libusb library.
use Device::USB;
my $usb = Device::USB->new();
my $dev = $usb->find_device( $VENDOR, $PRODUCT );
printf "Device: %04X:%04X\n", $dev->idVendor(), $dev->idProduct();
$dev->open();
my $cfg = $dev->config()->[0];
my $inter = $cfg->interfaces()->[0]->[0];
my $ep = $inter->endpoints()->[0];
print "Endpoint:", $inter->bEndpointAddress(),
" name: ", $dev->get_string_simple($iter->iInterface()), "\n";
See USB specification for an explanation of the attributes of an
endpoint.
=head1 DESCRIPTION
This module defines a Perl object that represents the data associated with
a USB interface endpoint. The object provides read-only access to the
important data associated with the endpoint.
=head2 METHODS
There are several accessor methods that return data from the interface.
Each is named after the field that they return. These accessors include:
=cut
# I need to build a lot of accessors
sub _make_descr_accessor
{
my $name = shift;
## no critic (ProhibitStringyEval)
return eval <<"EOE";
sub $name
{
my \$self = shift;
return \$self->{$name};
}
EOE
}
=over 4
=item bEndpointAddress
=item bmAttributes
=item wMaxPacketSize
=item bInterval
=item bRefresh
=item bSynchAddress
=cut
_make_descr_accessor( 'bEndpointAddress' );
_make_descr_accessor( 'bmAttributes' );
_make_descr_accessor( 'wMaxPacketSize' );
_make_descr_accessor( 'bInterval' );
_make_descr_accessor( 'bRefresh' );
_make_descr_accessor( 'bSynchAddress' );
=back
=head1 DIAGNOSTICS
This is an explanation of the diagnostic and error messages this module
can generate.
=head1 DEPENDENCIES
This module depends on the Carp, Inline and Inline::C modules, as well as
the strict and warnings pragmas. Obviously, libusb must be available since
that is the entire reason for the module's existence.
=head1 AUTHOR
G. Wade Johnson (gwadej at cpan dot org)
Paul Archer (paul at paularcher dot org)
Houston Perl Mongers Group
=head1 BUGS
Please report any bugs or feature requests to
C<bug-device-usb@rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org/NoAuth/ReportBug.html?Device::USB>.
I will be notified, and then you'll automatically be notified of progress on
your bug as I make changes.
=head1 ACKNOWLEDGEMENTS
Thanks go to various members of the Houston Perl Mongers group for input
on the module. But thanks mostly go to Paul Archer who proposed the project
and helped with the development.
=head1 COPYRIGHT & LICENSE
Copyright 2006-2013 Houston Perl Mongers
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut
1;
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