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0.7.2 / 2024-10-23

Changed:

  • Call libusb_set_log_cb only when available. #51 This was a regression leading to a crash on FreeBSD-14.1.

0.7.1 / 2024-04-20

Changed:

  • Fix unreferencing LIBUSB::Context from Call::Transfer. This prevented freeing of Context objects, as soon as a transfer was executed.

0.7.0 / 2024-04-18

Added:

  • Garbage collect LIBUSB::Context objects. #47 Context objects were intentionally not garbage collected previously, since it led to segfauls, when the context was freed before other libusb objects. Now refcounting all objects bound to a particular Context ensures that the underlying libusb context is always freed at last, avoiding any segfaults. Registered log callback and pollfd callbacks are disabled before garbage collecting LIBUSB::Context.
  • Cancel USB transfers on any exceptions not only LIBUSB::Error, but also Interrupt or IRB::Abort, etc. Otherwise incomplete transfers lead to LIBUSB::ERROR_BUSY at the next command.
  • Update Windows binary support for ruby up to 3.3.x
  • Update bundled libusb version to 1.0.27.
  • Add support for new functions of libusb-1.0.27 They are:
    • libusb_init_context
    • libusb_set_log_cb
    • libusb_wrap_sys_device
  • Add global Libusb.set_option and Libusb.set_options . #42
  • Add LIBUSB::Device.max_alt_packet_size. #42 Introduced in libusb-1.0.27 as libusb_get_max_alt_packet_size()
  • Add BOS platform descriptor introduced in libusb-1.0.27. #49
  • Add enums for all BOS descripors of the USB-3.2-V1.1 spec. #49

Changed:

  • Set minimum Ruby version requirement to 2.5.0.
  • Fix a circular reference in ZeroCopyMemory. This circular reference blocked all objects referenced by a LIBUSB::Transfer to be released by the garbage collector.
  • Make ZeroCopyMemory an opt-in rather then enforcing it In therory libusb_dev_mem_alloc shouldn't provide a pointer unless zero-copy-memory is supported by the linux kernel. But in practice this has been a repeating cause of issues, since some kernels don't handle these transfers. So it's better to enable it on request only. For instance older raspberry pi kernels didn't handle zero-copy-memory.
  • Fix struct member size in Bos::SsUsbDeviceCapability. #48 The bmAttributes member is defined as uint8_t not uint32_t.
  • Fix context reference in device of hotplug notification callback.
  • Deregister pollfd callbacks in eventmachine_unregister.

0.6.4 / 2018-05-05

Added:

  • New function Context#set_option. It is also available when running libusb < 1.0.22 and calls libusb_set_debug() in this case.
  • Add definition for SUPER_SPEED_PLUS.
  • Linux: Use system libusb even when only library but no dev package is installed.
  • Add Transfer#dev_handle and #timeout
  • Use system libusb even when no development package is installed. Means "libusb-1.0-0" is enough, no need for "libusb-dev" on Ubuntu.

Changed:

  • Update libusb to 1.0.22

Deprecated:

  • Deprecate Context#debug= analogous to libusb_set_debug in libusb-1.0.22.

0.6.3 / 2017-08-20

  • Fix compat with FreeBSD. #24

0.6.2 / 2017-01-13

  • Fix windows DLL loading bugs #22 and #23.

0.6.1 / 2016-12-18

  • Fix installation of bundled libusb library in source gem.

0.6.0 / 2016-12-09

  • Update bundled libusb version to 1.0.21.
  • Set minimum Ruby version requirement to 1.9.3.
  • Add binary gems for Linux in addition to Windows.
  • Switch to mini_portile2 for (cross-) builing the libusb library.
  • Add Context#interrupt_event_handler new in libusb-1.0.21
  • Add support for persistent/zerocopy device memory for transfers. It is new in libusb-1.0.21 and enabled by default for DevHandle#*_transfer methods.
  • Raise a more meaningful exception in case of bulk stream transfers on too old libusb versions.
  • Prefer the bundled libusb-dll over installed system library.

0.5.1 / 2015-09-29

  • Add ability to force use of the system or builtin libusb-1.0 library. Use: gem install libusb -- --enable-system-libusb / --disable-system-libusb
  • Update to libusb-1.0.20.
  • Build Windows binary gems per rake-compiler-dock.
  • Fix memory leak in Context#pollfds and use libusb_free_pollfds() if available.

0.5.0 / 2015-01-08

  • Add support for BOS describtors of libusb-1.0.16
  • Add support for superspeed endpoint companion descriptors of libusb-1.0.16
  • Add support for USB-3.0 bulk streams of libusb-1.0.19
  • Update bundled libusb version to 1.0.19.
  • Update windows cross build to gcc-4.8 and recent rubygems

0.4.1 / 2014-05-17

  • Update bundled libusb version to 1.0.18.
  • Change libusbx references back to libusb, since they have merged again.

0.4.0 / 2013-11-20

  • Add support for device hotplug notifications.
  • Update to libusbx-1.0.17.
  • Add DevHandle#auto_detach_kernel_driver= of libusb-1.0.16.
  • Add new capabilities introduced with libusb-1.0.16.
  • Offer #has_capability? for libusb versions older than 1.0.9.
  • Add new method port_numbers with alias to port_path.
  • Use libusb_get_port_numbers preferred to now deprecated libusb_get_port_path.

0.3.4 / 2013-04-05

  • Avoid closing of pollfds by the Ruby GC when used as IO object.

0.3.3 / 2013-04-05

  • Build and package binary x64 version of libusb for Windows in addition to x86.
  • Fix build on Windows from source gem (although may take almost an hour).

0.3.2 / 2013-02-16

  • Don't enforces DevKit installation on Windows.
  • Fix error check on libusb_get_device_list(). Thanks to Paul Kunysch for the bug report.
  • Add support for Cygwin. Requires ffi-1.4.0.

0.3.1 / 2013-01-22

  • Fix loading of compiled libusb library on OSX

0.3.0 / 2013-01-21

  • Build bundled libusbx sources in case libusb-1.0.so can not be loaded from the system
  • Replace Hoe with Bundler
  • Add timeout and completion_flag to Context#handle_events
  • Add asynchronous DevHandle#{control|interrupt|bulk}_transfer method variants
  • Add the ability to retrieve the data already transfered when it comes to an exception
  • Add notification API for libusb's file describtors for event driven USB transfers
  • Add experimental integration to EventMachine
  • Add several convenience methods to descriptors
  • Add missing return code checks to libusb_init() and libusb_get_device_list()

0.2.2 / 2012-10-19

  • Add method Interface#bInterfaceNumber
  • Fix methods (#claim_interface, #detach_kernel_driver) with Interface-type parameter
  • update to libusbx-1.0.14 for windows build

0.2.1 / 2012-09-25

  • Rename Configuration#maxPower to #bMaxPower as done in libusbx-1.0.13 and in ruby-usb.gem
  • update to libusbx-1.0.13 for windows build (with support for libusbK and libusb0)

0.2.0 / 2012-06-15

  • Divide up the libusb library across multiple files, required with autoload
  • add methods: LIBUSB.has_capability?, Device#device_speed (libusb-1.0.9+)
  • add possibility to read out libusb version: LIBUSB.version (libusbx-1.0.10+)
  • add methods: Device#parent, Device#port_number, Device#port_path (libusbx-1.0.12+)
  • switch to libusbx-1.0.12 for windows build

0.1.3 / 2012-03-15

  • Add documentation of descriptor accessors
  • Fix #extra accessor of Configuration, Setting and Endpoint

0.1.2 / 2012-03-14

  • Mark all blocking functions as blocking in FFI, so that parallel threads are not blocked
  • Add method Device#open_interface
  • Add block variant to #claim_interface
  • update API documentation

0.1.1 / 2011-12-09

  • avoid ffi calls with :blocking=>true, als long as it isn't stable on win32

0.1.0 / 2011-10-01

  • add test suite based on mass storage devices
  • usable async transfers
  • migration to rake-compiler and hoe
  • cross compiled Windows gems
  • distinct exception classes
  • new compatibility layer for ruby-usb.gem
  • many helper methods for different USB descriptors
  • add LIBUSB constants
  • downcase methods names

0.0.1 / 2009-06-23

  • first public release