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For detailed information about the changes below, please see the git log or
2012-09-26: v1.0.14
* Reverts the previous API change with regards to bMaxPower.
If this doesn't matter to you, you are encouraged to keep using v1.0.13,
as it will use the same attribute as v2.0, to be released soon.
* Note that LIBUSBX_API_VERSION is *decreased* to 0x010000FF and the previous
guidelines with regards to concurent use of MaxPower/bMaxPower still apply.
2012-09-20: v1.0.13
* [MAJOR] Fix a typo in the API with struct libusb_config_descriptor where
MaxPower was used instead of bMaxPower, as defined in the specs. If your
application was accessing the MaxPower attribute, and you need to maintain
compatibility with libusb or older versions, see APPENDIX A below.
* Fix broken support for the 0.1 -> 1.0 libusb-compat layer
* Fix unwanted cancellation of pending timeouts as well as major timeout related bugs
* Fix handling of HID and composite devices on Windows
* Introduce LIBUSBX_API_VERSION macro
* Add Cypress FX/FX2 firmware upload sample, based on fxload from
* Add libusb0 (libusb-win32) and libusbK driver support on Windows. Note that while
the drivers allow it, isochronous transfers are not supported yet in libusbx. Also
not supported yet is the use of libusb-win32 filter drivers on composite interfaces
* Add support for the new get_capabilities ioctl on Linux and avoid unnecessary
splitting of bulk transfers
* Improve support for newer Intel and Renesas USB 3.0 controllers on Windows
* Harmonize the device number for root hubs across platforms
* Other bug fixes and improvements
2012-06-15: v1.0.12
* Fix a potential major regression with pthread on Linux
* Fix missing thread ID from debug log output on cygwin
* Fix possible crash when using longjmp and MinGW's gcc 4.6
* Add topology calls: libusb_get_port_number(), libusb_get_parent() & libusb_get_port_path()
* Add toggleable debug, using libusb_set_debug() or the LIBUSB_DEBUG environment variable
* Define log levels in libusb.h and set timestamp origin to first libusb_init() call
* All logging is now sent to to stderr (info was sent to stdout previously)
* Update log messages severity and avoid polluting log output on OS-X
* Add HID driver support on Windows
* Enable interchangeability of MSVC and MinGW DLLs
* Additional bug fixes and improvements
2012-05-08: v1.0.11
* Revert removal of critical Windows event handling that was introduced in 1.0.10
* Fix a possible deadlock in Windows when submitting transfers
* Add timestamped logging
* Add NetBSD support (experimental) and BSD libusb_get_device_speed() data
* Add alongside ( doesn't invoke configure)
* Search for device nodes in /dev for Android support
* Other bug fixes
2012-04-17: v1.0.10
* Public release
* Add libusb_get_version
* Add Visual Studio 2010 project files
* Some Windows code cleanup
* Fix xusb sample warnings
2012-04-02: v1.0.9
* First libusbx release
* Add libusb_get_device_speed (all, except BSD) and libusb_error_name
* Add Windows support (WinUSB driver only)
* Add OpenBSD support
* Add xusb sample
* Tons of bug fixes
2010-05-07: v1.0.8
* Bug fixes
2010-04-19: v1.0.7
* Bug fixes and documentation tweaks
* Add more interface class definitions
2009-11-22: v1.0.6
* Bug fixes
* Increase libusb_handle_events() timeout to 60s for powersaving
2009-11-15: v1.0.5
* Use timerfd when available for timer management
* Small fixes/updates
2009-11-06: v1.0.4 release
* Bug fixes including transfer locking to fix some potential threading races
* More flexibility with clock types on Linux
* Use new bulk continuation tracking in Linux 2.6.32 for improved handling
of short/failed transfers
2009-08-27: v1.0.3 release
* Bug fixes
* Add libusb_get_max_iso_packet_size()
2009-06-13: v1.0.2 release
* Bug fixes
2009-05-12: v1.0.1 release
* Bug fixes
* Darwin backend
2008-12-13: v1.0.0 release
* Bug fixes
2008-11-21: v0.9.4 release
* Bug fixes
* Add libusb_attach_kernel_driver()
2008-08-23: v0.9.3 release
* Bug fixes
2008-07-19: v0.9.2 release
* Bug fixes
2008-06-28: v0.9.1 release
* Bug fixes
* Introduce contexts to the API
* Compatibility with new Linux kernel features
2008-05-25: v0.9.0 release
* First libusb-1.0 beta release
APPENDIX A - How to maintain code compatibility with versions of libusb and
libusbx that use MaxPower:
If you must to maintain compatibility with versions of the library that aren't
using the bMaxPower attribute in struct libusb_config_descriptor, the
recommended way is to use the new LIBUSBX_API_VERSION macro with an #ifdef.
For instance, if your code was written as follows:
if (dev->config[0].MaxPower < 250)
Then you should modify it to have:
#if defined(LIBUSBX_API_VERSION) && (LIBUSBX_API_VERSION >= 0x01000100)
if (dev->config[0].bMaxPower < 250)
if (dev->config[0].MaxPower < 250)