Method: LIBUSB::Context#wrap_sys_device

Defined in:
lib/libusb/context.rb

#wrap_sys_device(dev_io) ⇒ Object 



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# File 'lib/libusb/context.rb', line 277

def wrap_sys_device(dev_io)
  dev_io = dev_io.is_a?(IO) ? dev_io.fileno : dev_io

  ppHandle = FFI::MemoryPointer.new :pointer
  res = Call.libusb_wrap_sys_device(@ctx, dev_io, ppHandle)
  LIBUSB.raise_error res, "in libusb_wrap_sys_device" if res!=0
  handle = DevHandle.new self, ppHandle.read_pointer
  return handle unless block_given?
  begin
    yield handle
  ensure
    handle.close
  end
end