public bool do_connect(List <string> msgs)
{
if (m_DeviceDetected)
{
msgs.Add("USB device: was already open");
return(m_DeviceDetected);
}
msgs.Add("USB device: connecting...");
Boolean deviceFound = false;
Guid hidGuid = Guid.Empty;
String[] devicePathName = new String[128];
Int32 myVendorID = 0x16c0;
Int32 myProductID = 0x05df;
Int32 memberIndex = 0;
Boolean success = false;
Hid.HidD_GetHidGuid(ref hidGuid);
deviceFound = m_DeviceManagement.FindDeviceFromGuid(hidGuid, ref devicePathName);
if (deviceFound)
{
memberIndex = 0;
do
{
m_hidHandle = FileIO.CreateFile(devicePathName[memberIndex], 0, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0);
if (!m_hidHandle.IsInvalid)
{
m_Hid.DeviceAttributes.Size = Marshal.SizeOf(m_Hid.DeviceAttributes);
success = Hid.HidD_GetAttributes(m_hidHandle, ref m_Hid.DeviceAttributes);
if (success)
{
if ((m_Hid.DeviceAttributes.VendorID == myVendorID) && (m_Hid.DeviceAttributes.ProductID == myProductID))
{
m_DeviceDetected = true;
// Save the DevicePathName for OnDeviceChange().
m_DevicePathName = devicePathName[memberIndex];
}
else
{
// It's not a match, so close the handle.
m_DeviceDetected = false;
m_hidHandle.Close();
}
}
else
{
m_DeviceDetected = false;
m_hidHandle.Close();
}
}
memberIndex = memberIndex + 1;
}while (!((m_DeviceDetected || (memberIndex == devicePathName.Length))));
if (m_DeviceDetected)
{
msgs.Add("USB device: found the device on the bus");
m_Hid.Capabilities = m_Hid.GetDeviceCapabilities(m_hidHandle);
m_readHandle = FileIO.CreateFile(m_DevicePathName, FileIO.GENERIC_READ, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, FileIO.FILE_FLAG_OVERLAPPED, 0);
m_writeHandle = FileIO.CreateFile(m_DevicePathName, FileIO.GENERIC_WRITE, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0);
m_Hid.FlushQueue(m_readHandle);
Hid.InFeatureReport myInFeatureReport = new Hid.InFeatureReport();
Hid.OutFeatureReport myOutFeatureReport = new Hid.OutFeatureReport();
newOutBuffer();
newInBuffer();
}
else
{
msgs.Add("USB device: cannot find the device on the bus");
}
}
return(m_DeviceDetected);
}
public static bool FindNia(IntPtr Handle)
{
bool success = false;
try
{
// Get the guid for the system hid class
Guid hidGuid = Guid.Empty;
GenericHid.Hid.HidD_GetHidGuid(ref hidGuid);
// Find all devices of type hid
string[] deviceCollection = new String[128];
DeviceManagement deviceManagement = new DeviceManagement();
bool devicesFound = deviceManagement.FindDeviceFromGuid(hidGuid, ref deviceCollection);
// Did we find any hid devices ?
if (devicesFound)
{
int memberIndex = 0;
do
{
// try to get a handle on the current hid device in the list
hidHandle = GenericHid.FileIO.CreateFile(deviceCollection[memberIndex], 0, GenericHid.FileIO.FILE_SHARE_READ | GenericHid.FileIO.FILE_SHARE_WRITE, null, GenericHid.FileIO.OPEN_EXISTING, 0, 0);
if (!hidHandle.IsInvalid)
{
// Set the Size property of DeviceAttributes to the number of bytes in the structure.
MyHid.DeviceAttributes.Size = Marshal.SizeOf(MyHid.DeviceAttributes);
// try to get the hid's information
success = GenericHid.Hid.HidD_GetAttributes(hidHandle, ref MyHid.DeviceAttributes);
if (success)
{
if ((MyHid.DeviceAttributes.VendorID == 4660) & (MyHid.DeviceAttributes.ProductID == 0))
{
NiaDetected = true;
// Save the DevicePathName for OnDeviceChange().
NiaPathName = deviceCollection[memberIndex];
}
else
{
NiaDetected = false;
hidHandle.Close();
}
}
else
{
NiaDetected = false;
hidHandle.Close();
}
}
// Keep looking until we find the device or there are no devices left to examine.
memberIndex = memberIndex + 1;
} while (!((NiaDetected | (memberIndex == deviceCollection.Length))));
// Did we find a NIA ?
if (NiaDetected)
{
// The device was detected.
// Register to receive notifications if the device is removed or attached.
success = deviceManagement.RegisterForDeviceNotifications(NiaPathName, Handle, hidGuid, ref deviceNotificationHandle);
if (success)
{
// Get handles to use in requesting Input and Output reports.
readHandle = GenericHid.FileIO.CreateFile(NiaPathName, GenericHid.FileIO.GENERIC_READ, GenericHid.FileIO.FILE_SHARE_READ | GenericHid.FileIO.FILE_SHARE_WRITE, null, GenericHid.FileIO.OPEN_EXISTING, GenericHid.FileIO.FILE_FLAG_OVERLAPPED, 0);
if (!readHandle.IsInvalid)
{
writeHandle = GenericHid.FileIO.CreateFile(NiaPathName, GenericHid.FileIO.GENERIC_WRITE, GenericHid.FileIO.FILE_SHARE_READ | GenericHid.FileIO.FILE_SHARE_WRITE, null, GenericHid.FileIO.OPEN_EXISTING, 0, 0);
MyHid.FlushQueue(readHandle);
}
}
}
}
return(NiaDetected);
}
catch (Exception ex)
{
throw ex;
}
}