public unsafe string GetDeviceString(byte index)
{
return(WithHandle(winUsbHandle =>
{
var packet = SetupPacket.MakeGetStringDescriptor(index);
var buffer = ArrayPool <byte> .Shared.Rent(StringDescriptor.MaxSize);
fixed(void *bufferPtr = &buffer[0])
{
if (!WinUsb_ControlTransfer(winUsbHandle, packet, bufferPtr, StringDescriptor.MaxSize, out var descriptorLength, null))
{
ArrayPool <byte> .Shared.Return(buffer);
return null;
}
ArrayPool <byte> .Shared.Return(buffer);
return StringDescriptor.GetString((StringDescriptor *)bufferPtr);
}
}));
}
static void PrintStringDescriptor(StringDescriptor descriptor)
{
Console.WriteLine($"Type: {descriptor.Type}");
Console.WriteLine($"Value: {descriptor.Value}");
}
