C++ (Cpp) add_input_device示例

示例#1

文件： ossusb_ymhmidi.c 项目： Open-Sound-System/Open-Sound-System

void *
yamaha_usb_midi_driver (ossusb_devc * usb_devc)
{
  ymhusb_devc *devc;
  int i;
  unsigned char *desc;
  int desc_len;
  int caps = MIDI_CAP_EXTERNAL;
  unsigned int devid;

  char *name = "Yamaha USB MIDI";

  if (usb_devc->dev_name != NULL)
    name = usb_devc->dev_name;

  if ((devc = PMALLOC (usb_devc->osdev, sizeof (*devc))) == NULL)
    {
      cmn_err (CE_WARN, "Yamaha MIDI: Out of memory\n");
      return NULL;
    }

  memset (devc, 0, sizeof (*devc));

  devc->unload_func = ymhusb_unload;
  devc->osdev = usb_devc->osdev;
  devc->usbdev = usb_devc->last_usbdev;
  MUTEX_INIT (devc->osdev, devc->mutex, MH_DRV);
  devid = (usb_devc->vendor << 16) | usb_devc->product;

  DDB (cmn_err
       (CE_CONT, "Attaching Yamaha MIDI device %08x (%s)\n", devid, name));

  switch (devid)
    {
    case 0x0499101e:		/* PSR-K1 keyboard */
      caps |= MIDI_CAP_PTOP;
      break;
    }

  for (i = 0; i < 32; i++)
    if ((desc =
	 udi_usbdev_get_endpoint (devc->usbdev, 0, i, &desc_len)) != NULL)
      {
	if (desc[2] & 0x80)
	  {
	    add_input_device (devc, name, desc, caps);
	  }
	else
	  {
	    add_output_device (devc, name, desc, caps);
	  }
      }

  return devc;
}

示例#2

文件： annotation_window_callbacks.c 项目： Byrnesz/ardesia-1

/* On device removed. */
void on_device_added    (GdkDeviceManager  *device_manager,
                         GdkDevice         *device,
                         gpointer           user_data)
{
  AnnotateData *data = (AnnotateData *) user_data;

  if(data->debug)
    {
      g_printerr ("DEBUG: device '%s' added\n", gdk_device_get_name (device));
    }

  add_input_device (device, data);
}