# The devel/libusb-compat port

## libusb-compat-0.1.5 – libusb-0.1 compatibility layer for libusb1

## Description

    A compatibility layer allowing applications written for libusb-0.1 to work
    with libusb-1.0. libusb-compat-0.1 attempts to look, feel, smell and walk
    like libusb-0.1.

    Known quirks/differences from libusb-0.1:
     1. usb_resetep(), a previously deprecated function, is implemented as
        equivalent to calling usb_clear_halt().
     2. libusb-0.1 allowed you to open a device which you did not have
        permission to do anything useful with (all I/O requests would
        immediately fail). libusb-compat-0.1 does not allow you to open such
        devices. You can still read descriptor info without opening a
        device.
     3. usb_device's "num_children" attribute is hardcoded to 0, and
        "children" is hardcoded to NULL. Do you need this information in
        your software? Let us know on the mailing list, and we'll add it.
     4. Some libusb-0.1 users may have implemented I/O cancellation by
        running transfers in their own threads and simply killing the thread
        when they don't want to do the transfer any more. This is bad
        programming practice for obvious reasons, and this lack of
        functionality was one of the primary drivers for libusb-1.0
        development. With libusb-1.0 or libusb-compat-0.1 backed by
        libusb-1.0, forcefully killing threads in this way is likely to
        cause all libusb I/O to halt. Instead, port your application to use
        libusb-1.0's asynchronous transfer API, which supports transfer
        cancellation.
     5. Error codes returned on certain events may not exactly match the
        error codes returned by libusb-0.1.

WWW: http://libusb.sourceforge.net/

Categories:
  devel

## Library dependencies

- devel/libusb1

## Build dependencies

- archivers/bzip2

## Run dependencies