private void InitialAdd()
{
IntPtr deviceProfilePtrPtr;
var ret = NativeMethods.GetDeviceList(context, out deviceProfilePtrPtr);
if (ret > 0 || deviceProfilePtrPtr == IntPtr.Zero)
{
for (var i = 0; i < ret; i++)
{
// calculate the offset pointer
var deviceProfilePtr =
Marshal.ReadIntPtr(new IntPtr(deviceProfilePtrPtr.ToInt64() + i * IntPtr.Size));
var desc = new LibUsbDeviceDescriptor();
NativeMethods.GetDeviceDescriptor(deviceProfilePtr, desc);
if (desc.idVendor == TreehopperUsb.Settings.Vid && desc.idProduct == TreehopperUsb.Settings.Pid)
{
var board = new TreehopperUsb(new LibUsbConnection(deviceProfilePtr));
Debug.WriteLine("Adding " + board);
Boards.Add(board);
}
}
}
}
public LibUsbConnection(IntPtr deviceProfile)
{
var desc = new LibUsbDeviceDescriptor();
NativeMethods.GetDeviceDescriptor(deviceProfile, desc);
this.deviceProfile = deviceProfile;
Task.Run(OpenAsync).Wait();
var sb = new StringBuilder();
NativeMethods.GetStringDescriptor(deviceHandle, 2, sb, sb.Capacity + 1);
Name = sb.ToString();
NativeMethods.GetStringDescriptor(deviceHandle, 3, sb, sb.Capacity + 1);
Serial = sb.ToString();
Close();
var hex = desc.bcdDevice; // 0x0111 = 1.11
Version = (ushort)((hex & 0x0f) + (10 * ((hex >> 4) & 0x0f)) + (100 * ((hex >> 8) & 0x0f)) + (1000 * ((hex >> 12) & 0x0f))); // convert 0x1234 to 1234
DevicePath = deviceProfile.ToString();
}
public static extern int GetDeviceDescriptor([In] IntPtr deviceProfileHandle,
[Out] LibUsbDeviceDescriptor deviceDescriptor);
