private async Task <bool> ConnectUsbDeviceAsync(UsbDeviceInformation usbDeviceInfo)
{
// try to determine if we already have this device opened.
if (EventHandlerForUsbDevice.Current != null)
{
// device matches
if (EventHandlerForUsbDevice.Current.DeviceInformation == usbDeviceInfo.DeviceInformation)
{
return(true);
}
}
// Create an EventHandlerForDevice to watch for the device we are connecting to
EventHandlerForUsbDevice.CreateNewEventHandlerForDevice();
return(await EventHandlerForUsbDevice.Current.OpenDeviceAsync(usbDeviceInfo.DeviceInformation, usbDeviceInfo.DeviceSelector).ConfigureAwait(false));
}
/// <summary>
/// Creates a new instance of EventHandlerForUSBDevice, disables auto reconnect, and uses it as the Current instance.
/// Background tasks do not need to worry about app events, so we will not be registering for app events
/// </summary>
public static void CreateNewEventHandlerForDeviceForBackgroundTasks()
{
eventHandlerForNanoFrameworkDevice = new EventHandlerForUsbDevice(true);
}
/// <summary>
/// Creates a new instance of EventHandlerForUSBDevice, enables auto reconnect, and uses it as the Current instance.
/// </summary>
public static void CreateNewEventHandlerForDevice()
{
eventHandlerForNanoFrameworkDevice = new EventHandlerForUsbDevice(false);
}
