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NAMEDevice::USB::Bus - Use libusb to access USB devices.VERSIONVersion 0.12SYNOPSISThis class encapsulates the USB bus structure and provides methods for retrieving data from it. This class is not meant to be used alone, it is part of the Device::USB package.Device:USB:LibUSB provides a Perl wrapper around the libusb library. This supports Perl code controlling and accessing USB devices. use Device::USB; my $usb = Device::USB->new(); foreach my $bus ($usb->list_busses()) { print $bus->dirname(), ":\n"; foreach my $dev ($bus->devices()) { print "\t", $dev->filename(), "\n"; } } DESCRIPTIONThis module provides a Perl interface to the bus structures returned by the libusb library. This library supports a read-only interface to the data libusb returns about a USB bus.FUNCTIONS
returns a device reference or undef if none was found.
For example, my @devices = $bus->list_devices_if( sub { Device::USB::CLASS_HUB == $_->bDeviceClass() } ); Returns all USB hubs found on this bus. The device to test is available to the coderef in the $_ variable for simplicity. DIAGNOSTICSThis is an explanation of the diagnostic and error messages this module can generate.DEPENDENCIESThis module depends on the Carp and Device::USB, as well as the strict and warnings pragmas. Obviously, libusb must be available since that is the entire reason for the module's existence.AUTHORG. Wade Johnson (wade at anomaly dot org) Paul Archer (paul at paularcher dot org)Houston Perl Mongers Group BUGSPlease report any bugs or feature requests to "bug-device-usb@rt.cpan.org", or through the web interface at <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.ACKNOWLEDGEMENTSThanks 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.Thanks also go to Josep Monés Teixidor, Mike McCauley, and Tony Awtrey for spotting, reporting, and (sometimes) fixing bugs. COPYRIGHT & LICENSECopyright 2006 Houston Perl MongersThis program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. POD ERRORSHey! The above document had some coding errors, which are explained below:
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