private USB_STRING_DESCRIPTOR ParseStringDescriptor(EusbPdu pdu)
{
if (pdu is EusbUrbCompletionNoDataPdu)
{
Site.Log.Add(
LogEntryKind.Debug,
"Unexpectedly received an EusbUrbCompletionNoDataPdu message: {0}",
pdu
);
return(null);
}
Site.Assert.IsInstanceOfType(
pdu,
typeof(EusbUrbCompletionPdu),
"Must receive an EusbUrbCompletionPdu message."
);
EusbUrbCompletionPdu completionPdu = (EusbUrbCompletionPdu)pdu;
Site.Assert.IsSuccess(
(int)completionPdu.HResult,
"the HResult member of the EusbUrbCompletionPdu must be a successful code."
);
USB_STRING_DESCRIPTOR res = UsbStructParser.Parse <USB_STRING_DESCRIPTOR>(completionPdu);
Site.Assert.IsNotNull(res, "USB_STRING_DESCRIPTOR cannot be parsed from EusbUrbCompletionPdu");
return(res);
}
public static string GetManufact(IntPtr h, USB_DEVICE_DESCRIPTOR PortDeviceDescriptor, int PortPortNumber)
{
if (PortDeviceDescriptor.iManufacturer > 0)
{
int nBytesReturned;
int nBytes = BUFFER_SIZE;
// build a request for string descriptor
USB_DESCRIPTOR_REQUEST Request = new USB_DESCRIPTOR_REQUEST();
Request.ConnectionIndex = PortPortNumber;
Request.SetupPacket.wValue = (short)((USB_STRING_DESCRIPTOR_TYPE << 8) + PortDeviceDescriptor.iManufacturer);
Request.SetupPacket.wLength = (short)(nBytes - Marshal.SizeOf(Request));
Request.SetupPacket.wIndex = 0x409; // Language Code
// Geez, I wish C# had a Marshal.MemSet() method
string NullString = new string((char)0, nBytes / Marshal.SystemDefaultCharSize);
IntPtr ptrRequest = Marshal.StringToHGlobalAuto(NullString);
Marshal.StructureToPtr(Request, ptrRequest, true);
// Use an IOCTL call to request the String Descriptor
if (DeviceIoControl(h, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, ptrRequest, nBytes, ptrRequest, nBytes, out nBytesReturned, IntPtr.Zero))
{
// The location of the string descriptor is immediately after
// the Request structure. Because this location is not "covered"
// by the structure allocation, we're forced to zero out this
// chunk of memory by using the StringToHGlobalAuto() hack above
IntPtr ptrStringDesc = new IntPtr(ptrRequest.ToInt32() + Marshal.SizeOf(Request));
USB_STRING_DESCRIPTOR StringDesc = (USB_STRING_DESCRIPTOR)Marshal.PtrToStructure(ptrStringDesc, typeof(USB_STRING_DESCRIPTOR));
return(StringDesc.bString);
}
Marshal.FreeHGlobal(ptrRequest);
}
return("");
}
public USBDevice GetDevice()
{
if (!this.PortIsDeviceConnected)
{
return(null);
}
USBDevice uSBDevice = new USBDevice();
uSBDevice.DevicePortNumber = this.PortPortNumber;
uSBDevice.DeviceHubDevicePath = this.PortHubDevicePath;
uSBDevice.DeviceDescriptor = this.PortDeviceDescriptor;
uSBDevice.DeviceVID = this.PortDeviceDescriptor.idVendor;
uSBDevice.DevicePID = this.PortDeviceDescriptor.idProduct;
IntPtr intPtr = Acer_USB_Library.CreateFile(this.PortHubDevicePath, 1073741824, 2, IntPtr.Zero, 3, 0, IntPtr.Zero);
if (intPtr.ToInt32() != -1)
{
int num = 2048;
string s = new string('\0', 2048 / Marshal.SystemDefaultCharSize);
int num2 = default(int);
if (this.PortDeviceDescriptor.iManufacturer > 0)
{
USB_DESCRIPTOR_REQUEST structure = default(USB_DESCRIPTOR_REQUEST);
structure.ConnectionIndex = this.PortPortNumber;
structure.SetupPacket.wValue = (short)(768 + this.PortDeviceDescriptor.iManufacturer);
structure.SetupPacket.wLength = (short)(num - Marshal.SizeOf(structure));
structure.SetupPacket.wIndex = 1033;
IntPtr intPtr2 = Marshal.StringToHGlobalAuto(s);
Marshal.StructureToPtr(structure, intPtr2, true);
if (Acer_USB_Library.DeviceIoControl(intPtr, 2229264, intPtr2, num, intPtr2, num, out num2, IntPtr.Zero))
{
USB_STRING_DESCRIPTOR uSB_STRING_DESCRIPTOR = (USB_STRING_DESCRIPTOR)Marshal.PtrToStructure(new IntPtr(intPtr2.ToInt32() + Marshal.SizeOf(structure)), typeof(USB_STRING_DESCRIPTOR));
uSBDevice.DeviceManufacturer = uSB_STRING_DESCRIPTOR.bString;
}
Marshal.FreeHGlobal(intPtr2);
}
if (this.PortDeviceDescriptor.iProduct > 0)
{
USB_DESCRIPTOR_REQUEST structure2 = default(USB_DESCRIPTOR_REQUEST);
structure2.ConnectionIndex = this.PortPortNumber;
structure2.SetupPacket.wValue = (short)(768 + this.PortDeviceDescriptor.iProduct);
structure2.SetupPacket.wLength = (short)(num - Marshal.SizeOf(structure2));
structure2.SetupPacket.wIndex = 1033;
IntPtr intPtr3 = Marshal.StringToHGlobalAuto(s);
Marshal.StructureToPtr(structure2, intPtr3, true);
if (Acer_USB_Library.DeviceIoControl(intPtr, 2229264, intPtr3, num, intPtr3, num, out num2, IntPtr.Zero))
{
USB_STRING_DESCRIPTOR uSB_STRING_DESCRIPTOR2 = (USB_STRING_DESCRIPTOR)Marshal.PtrToStructure(new IntPtr(intPtr3.ToInt32() + Marshal.SizeOf(structure2)), typeof(USB_STRING_DESCRIPTOR));
uSBDevice.DeviceProduct = uSB_STRING_DESCRIPTOR2.bString;
}
Marshal.FreeHGlobal(intPtr3);
}
if (this.PortDeviceDescriptor.iSerialNumber > 0)
{
USB_DESCRIPTOR_REQUEST structure3 = default(USB_DESCRIPTOR_REQUEST);
structure3.ConnectionIndex = this.PortPortNumber;
structure3.SetupPacket.wValue = (short)(768 + this.PortDeviceDescriptor.iSerialNumber);
structure3.SetupPacket.wLength = (short)(num - Marshal.SizeOf(structure3));
structure3.SetupPacket.wIndex = 1033;
IntPtr intPtr4 = Marshal.StringToHGlobalAuto(s);
Marshal.StructureToPtr(structure3, intPtr4, true);
if (Acer_USB_Library.DeviceIoControl(intPtr, 2229264, intPtr4, num, intPtr4, num, out num2, IntPtr.Zero))
{
USB_STRING_DESCRIPTOR uSB_STRING_DESCRIPTOR3 = (USB_STRING_DESCRIPTOR)Marshal.PtrToStructure(new IntPtr(intPtr4.ToInt32() + Marshal.SizeOf(structure3)), typeof(USB_STRING_DESCRIPTOR));
uSBDevice.DeviceSerialNumber = uSB_STRING_DESCRIPTOR3.bString;
}
Marshal.FreeHGlobal(intPtr4);
}
USB_NODE_CONNECTION_DRIVERKEY_NAME uSB_NODE_CONNECTION_DRIVERKEY_NAME = default(USB_NODE_CONNECTION_DRIVERKEY_NAME);
uSB_NODE_CONNECTION_DRIVERKEY_NAME.ConnectionIndex = this.PortPortNumber;
num = Marshal.SizeOf(uSB_NODE_CONNECTION_DRIVERKEY_NAME);
IntPtr intPtr5 = Marshal.AllocHGlobal(num);
Marshal.StructureToPtr(uSB_NODE_CONNECTION_DRIVERKEY_NAME, intPtr5, true);
if (Acer_USB_Library.DeviceIoControl(intPtr, 2229280, intPtr5, num, intPtr5, num, out num2, IntPtr.Zero))
{
uSB_NODE_CONNECTION_DRIVERKEY_NAME = (USB_NODE_CONNECTION_DRIVERKEY_NAME)Marshal.PtrToStructure(intPtr5, typeof(USB_NODE_CONNECTION_DRIVERKEY_NAME));
uSBDevice.DeviceDriverKey = uSB_NODE_CONNECTION_DRIVERKEY_NAME.DriverKeyName;
uSBDevice.DeviceName = Acer_USB_Library.GetDescriptionByKeyName(uSBDevice.DeviceDriverKey);
uSBDevice.DeviceInstanceID = Acer_USB_Library.GetInstanceIDByKeyName(uSBDevice.DeviceDriverKey);
}
Marshal.FreeHGlobal(intPtr5);
Acer_USB_Library.CloseHandle(intPtr);
}
return(uSBDevice);
}
