Exemplo n.º 1
0
int libusb_release_interface(libusb_device_handle* dev, int interface_number)
{
	usb_dev_handle* device_handle (translate(dev));
	usb_release_interface(device_handle, interface_number);
	// LIBUSB_ERROR_NOT_FOUND if the interface was not claimed
	// LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
	// another LIBUSB_ERROR code on other failure
	// 0 on success
	return(0);
}
Exemplo n.º 2
0
	bool handle_input_event(input_event eventid, void* eventdata) override
	{
		// Only handle raw input data
		if (!input_enabled() || eventid != INPUT_EVENT_RAWINPUT)
			return false;

		HRAWINPUT rawinputdevice = *static_cast<HRAWINPUT*>(eventdata);

		BYTE small_buffer[4096];
		std::unique_ptr<BYTE[]> larger_buffer;
		LPBYTE data = small_buffer;
		UINT size;

		// ignore if not enabled
		if (!input_enabled())
			return false;

		// determine the size of databuffer we need
		if ((*get_rawinput_data)(rawinputdevice, RID_INPUT, nullptr, &size, sizeof(RAWINPUTHEADER)) != 0)
			return false;

		// if necessary, allocate a temporary buffer and fetch the data
		if (size > sizeof(small_buffer))
		{
			larger_buffer = std::make_unique<BYTE[]>(size);
			data = larger_buffer.get();
			if (data == nullptr)
				return false;
		}

		// fetch the data and process the appropriate message types
		bool result = (*get_rawinput_data)(static_cast<HRAWINPUT>(rawinputdevice), RID_INPUT, data, &size, sizeof(RAWINPUTHEADER));
		if (result)
		{
			std::lock_guard<std::mutex> scope_lock(m_module_lock);

			RAWINPUT *input = reinterpret_cast<RAWINPUT*>(data);

			// find the device in the list and update
			auto target_device = std::find_if(devicelist()->begin(), devicelist()->end(), [input](auto &device)
			{
				auto devinfo = dynamic_cast<rawinput_device*>(device.get());
				return devinfo != nullptr && input->header.hDevice == devinfo->device_handle();
			});

			if (target_device != devicelist()->end())
			{
				static_cast<rawinput_device*>((*target_device).get())->queue_events(input, 1);
				return true;
			}
		}

		return false;
	}
Exemplo n.º 3
0
int libusb_control_transfer(libusb_device_handle* dev_handle, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, unsigned char* data, uint16_t wLength, unsigned int timeout)
{
	usb_dev_handle* device_handle (translate(dev_handle));
	// in libusb-1.0 a timeout of zero it means 'wait indefinitely'; in libusb-0.1, a timeout of zero means 'return immediatelly'!
	timeout = (0 == timeout) ? 60000 : timeout;   // wait 60000ms (60s = 1min) if the transfer is supposed to wait indefinitely...
	int bytes_transferred = usb_control_msg(device_handle, bmRequestType, bRequest, wValue, wIndex, (char*)data, wLength, timeout);
	// on success, the number of bytes actually transferred
	// LIBUSB_ERROR_TIMEOUT if the transfer timed out
	// LIBUSB_ERROR_PIPE if the control request was not supported by the device
	// LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
	// another LIBUSB_ERROR code on other failures
	return(bytes_transferred);
}
Exemplo n.º 4
0
int libusb_claim_interface(libusb_device_handle* dev, int interface_number)
{
	usb_dev_handle* device_handle (translate(dev));
	if (0 == usb_claim_interface(device_handle, interface_number))
	{
		int ok2 = usb_set_configuration(device_handle, 1);
	}
	// LIBUSB_ERROR_NOT_FOUND if the requested interface does not exist
	// LIBUSB_ERROR_BUSY if another program or driver has claimed the interface
	// LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
	// a LIBUSB_ERROR code on other failure
	// 0 on success
	return(0);
}
Exemplo n.º 5
0
int libusb_open(libusb_device* dev, libusb_device_handle** handle)
{
	struct usb_device* device (translate(dev));
	usb_dev_handle* device_handle (usb_open(device));
	*handle = translate(device_handle);
	if (NULL == device_handle)
	{
		// LIBUSB_ERROR_NO_MEM on memory allocation failure
		// LIBUSB_ERROR_ACCESS if the user has insufficient permissions
		// LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
		// another LIBUSB_ERROR code on other failure
		return(LIBUSB_ERROR_OTHER);
	}
	//0 on success
	return(0);
}
Exemplo n.º 6
0
static void rt_main(struct rt_t *rt)
{
    int r;
    size_t n;

    if (raise_priority() == -1)
        return;

    while (!rt->finished) {
        r = poll(rt->pt, rt->npt, -1);
        if (r == -1) {
            if (errno == EINTR) {
                continue;
            } else {
                perror("poll");
                return;
            }
        }

        for (n = 0; n < rt->ndv; n++)
            device_handle(rt->dv[n]);
    }
}
Exemplo n.º 7
0
void libusb_close(libusb_device_handle*	dev_handle)
{
	usb_dev_handle* device_handle (translate(dev_handle));
	usb_close(device_handle);
}