internal LibUsbProfile(LibUsbProfileHandle monoUSBProfileHandle)
{
mMonoUSBProfileHandle = monoUSBProfileHandle;
mBusNumber = LibUsbApi.GetBusNumber(mMonoUSBProfileHandle);
mDeviceAddress = LibUsbApi.GetDeviceAddress(mMonoUSBProfileHandle);
GetDeviceDescriptor(out mMonoUsbDeviceDescriptor);
//#if DEBUG
// Console.WriteLine("Vid:{0:X4} Pid:{1:X4} BusNumber:{2} DeviceAddress:{3}",
// mMonoUsbDeviceDescriptor.VendorID,
// mMonoUsbDeviceDescriptor.ProductID,
// mBusNumber,
// mDeviceAddress);
//#endif
}
/// <summary>Open a device handle from <paramref name="profileHandle"/>.</summary>
/// <remarks>
/// <para>A handle allows you to perform I/O on the device in question.</para>
/// <para>To close a device handle call its <see cref="SafeHandle.Close"/> method.</para>
/// <para>This is a non-blocking function; no requests are sent over the bus.</para>
/// <note title="Libusb-1.0 API Note:" type="cpp">The <see cref="LibUsbDeviceHandle(LibUsbProfileHandle)"/> constructor is roughly equivalent to <a href="http://libusb.sourceforge.net/api-1.0/group__dev.html#ga8163100afdf933fabed0db7fa81c89d1">libusb_open()</a>.</note>
/// </remarks>
/// <param name="profileHandle">A device profile handle.</param>
public LibUsbDeviceHandle(LibUsbProfileHandle profileHandle)
: base(IntPtr.Zero)
{
IntPtr pDeviceHandle = IntPtr.Zero;
int ret = LibUsbApi.Open(profileHandle, ref pDeviceHandle);
if (ret < 0 || pDeviceHandle==IntPtr.Zero)
{
lock (handleLOCK)
{
mLastReturnCode = (LibUsbError) ret;
mLastReturnString = LibUsbApi.StrError(mLastReturnCode);
}
SetHandleAsInvalid();
}
else
{
SetHandle(pDeviceHandle);
}
}