private DeviceInterface FindDevice()
{
Guid hidGuid = DeviceInformationSet.GetHidGuid();
using (var deviceInformationSet = new DeviceInformationSet(hidGuid, DiGetClassFlags.Present | DiGetClassFlags.DeviceInterface))
{
DeviceInterface deviceInterface = deviceInformationSet.GetDeviceInterfaces(hidGuid)
.Where(d => d.IsValidUsbDevice)
.FirstOrDefault(dis => dis.Details.DevicePath.Contains(VendorId) && dis.Details.DevicePath.Contains(ProductId));
if (deviceInterface == null)
{
_log.Debug("device not found");
}
else
{
_log.Debug("device found: " + deviceInterface.Details.DevicePath);
}
return deviceInterface;
}
}
private bool TryOpen(int blockSize)
{
Dispose();
DeviceInterface deviceInterface;
Guid hidGuid = DeviceInformationSet.GetHidGuid();
using (var deviceInformationSet = new DeviceInformationSet(hidGuid, DiGetClassFlags.Present | DiGetClassFlags.DeviceInterface))
{
deviceInterface = deviceInformationSet.GetDeviceInterfaces(hidGuid)
.Where(d => d.IsValidUsbDevice)
.FirstOrDefault(dis => (dis.Details.DevicePath.Contains("16c0") && dis.Details.DevicePath.Contains("0478"))
|| (dis.Details.DevicePath.Contains("03eb") && dis.Details.DevicePath.Contains("2067")));
if (deviceInterface != null)
{
_handle = deviceInterface.OpenFile(blockSize + 3);
return true;
}
return false;
}
}
