protected static List <USBPort> GetHubPorts(USBHub hub)
{
List <USBPort> ports = new List <USBPort>();
// Collect the node information
IOCTLcommand ioctl = new IOCTLcommand();
ioctl.ioctlNo = UsbApi.CTL_CODE(0x00000022, (uint)UsbApi.UsbIoctlFunction.USB_GET_NODE_INFORMATION, 0, 0x0);
ioctl.inputBuffer = null;
ioctl.outputMaxSize = 128;
try {
// Open Root hub
IntPtr hHub = UsbApi.OpenDevice(hub.devicePath, true);
IoStatus status = UsbApi.DeviceIoControl(hHub, ioctl);
UsbApi.UsbNativeType.USB_NODE_INFORMATION hubInfo = (UsbApi.UsbNativeType.USB_NODE_INFORMATION)UsbApi.UsbNativeType.Deserialize(
status.buffer, 0, typeof(UsbApi.UsbNativeType.USB_NODE_INFORMATION));
UsbApi.CloseDevice(hHub);
// Now Iterate through all the ports
for (uint i = 1; i <= hubInfo.NodeInfo.hubDescriptor.bNumberOfPorts; i++)
{
ports.Add(new USBPort(hub, i));
}
} catch (Exception) {}
return(ports);
}
protected unsafe static void GetPortInformation(USBPort port)
{
// Collect the node information
IOCTLcommand ioctl = new IOCTLcommand();
ioctl.ioctlNo = UsbApi.CTL_CODE(0x00000022, (uint)UsbApi.UsbIoctlFunction.USB_GET_NODE_CONNECTION_INFORMATION_EX, 0, 0x0);
port.connInfo = new UsbApi.UsbNativeType.USB_NODE_CONNECTION_INFORMATION();
port.connInfo.ConnectionIndex = port.portIndex;
ioctl.inputBuffer = UsbApi.UsbNativeType.Serialize(port.connInfo);
ioctl.outputMaxSize = (uint)Marshal.SizeOf(port.connInfo);
try {
// Open Root hub
IntPtr hHub = UsbApi.OpenDevice(port.rootHub.devicePath, true);
IoStatus status = UsbApi.DeviceIoControl(hHub, ioctl);
UsbApi.CloseDevice(hHub);
port.connInfo = (UsbApi.UsbNativeType.USB_NODE_CONNECTION_INFORMATION)UsbApi.UsbNativeType.Deserialize(
status.buffer, 0, typeof(UsbApi.UsbNativeType.USB_NODE_CONNECTION_INFORMATION));
} catch (Exception) {}
}
protected static string GetHCDDriverKeyName(string devicePath)
{
char[] decoded = null;
IOCTLcommand ioctl = new IOCTLcommand();
ioctl.ioctlNo = UsbApi.CTL_CODE(0x00000022, (uint)UsbApi.UsbIoctlFunction.HCD_GET_DRIVERKEY_NAME, 0, 0x0);
ioctl.inputBuffer = null;
ioctl.outputMaxSize = 260;
try
{
IntPtr hDevice = UsbApi.OpenDevice(devicePath, true);
IoStatus status = UsbApi.DeviceIoControl(hDevice, ioctl);
UsbApi.CloseDevice(hDevice);
// struct {ULONG Length; WCHAR Name[256];} DriverKeyName;
decoded = Encoding.Unicode.GetChars(status.buffer, IntPtr.Size, (int)status.size - IntPtr.Size);
}
catch (Exception) { }
return((decoded == null) ? null : new String(decoded));
}
public unsafe static IoStatus DeviceIoControl(IntPtr handle, IOCTLcommand command)
{
GCHandle hInput = new GCHandle();
GCHandle hOutput = new GCHandle();
IoStatus status = new IoStatus();
status.buffer = new byte[command.outputMaxSize];
status.size = 0;
status.error = USBError.SUCCESS;
try
{
// pin the buffers into place
hInput = GCHandle.Alloc(command.inputBuffer, GCHandleType.Pinned);
hOutput = GCHandle.Alloc(status.buffer, GCHandleType.Pinned);
if (UsbNativeApi.DeviceIoControl(
handle,
command.ioctlNo,
hInput.AddrOfPinnedObject(), (command.inputBuffer == null) ? 0 : (uint)command.inputBuffer.Length,
hOutput.AddrOfPinnedObject(), (uint)command.outputMaxSize,
ref status.size,
(IntPtr)0) != 0)
{
status.error = USBError.WIN_API_SPECIFIC;
}
}
finally
{
if (hInput.IsAllocated)
{
hInput.Free();
}
if (hOutput.IsAllocated)
{
hOutput.Free();
}
}
return(status);
}
protected static string GetRootHubDevicePath(USBController controller)
{
// Now get the system name of it's root hub for interrogation
char[] decoded = null;
IOCTLcommand ioctl = new IOCTLcommand();
ioctl.ioctlNo = UsbApi.CTL_CODE(0x00000022, (uint)UsbApi.UsbIoctlFunction.HCD_GET_ROOT_HUB_NAME, 0, 0x0);
ioctl.inputBuffer = null;
ioctl.outputMaxSize = 260;
try
{
IntPtr hDevice = UsbApi.OpenDevice(controller.devicePath, true);
IoStatus status = UsbApi.DeviceIoControl(hDevice, ioctl);
UsbApi.CloseDevice(hDevice);
// struct {ULONG Length; WCHAR Name[256];} DriverKeyName;
decoded = Encoding.Unicode.GetChars(status.buffer, IntPtr.Size, (int)status.size - IntPtr.Size);
}
catch (Exception) { }
return((decoded == null) ? null : "\\\\.\\" + new String(decoded));
}
protected unsafe static string GetStringDescriptor(USBPort port, Byte stringIndex)
{
UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST descriptor = new UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST();
descriptor.ConnectionIndex = port.portIndex;
// USBD will automatically initialize these fields:
// bmRequest = 0x80
// bRequest = 0x06
// wValue = Descriptor Type (high) and Descriptor Index (low byte)
descriptor.wValue = (ushort)(((ushort)UsbApi.UsbNativeType.UsbDescriptorType.USB_STRING_DESCRIPTOR_TYPE << 8) | (ushort)stringIndex);
// wIndex = Zero (or Language ID for String Descriptors)
descriptor.wIndex = (ushort)0;
// wLength = Length of descriptor buffer
descriptor.wLength = (ushort)Marshal.SizeOf(typeof(UsbApi.UsbNativeType.USB_STRING_DESCRIPTOR));
// Collect the information string
IOCTLcommand ioctl = new IOCTLcommand();
ioctl.ioctlNo = UsbApi.CTL_CODE(0x00000022, (uint)UsbApi.UsbIoctlFunction.USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, 0, 0x0);
ioctl.inputBuffer = UsbApi.UsbNativeType.Serialize(descriptor);
ioctl.outputMaxSize = (uint)Marshal.SizeOf(descriptor);
string result = null;
try {
// Open Root hub
IntPtr hHub = UsbApi.OpenDevice(port.rootHub.devicePath, true);
IoStatus status = UsbApi.DeviceIoControl(hHub, ioctl);
UsbApi.CloseDevice(hHub);
descriptor = (UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST)UsbApi.UsbNativeType.Deserialize(
status.buffer, 0, typeof(UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST));
UsbApi.UsbNativeType.USB_STRING_DESCRIPTOR strDescr = (UsbApi.UsbNativeType.USB_STRING_DESCRIPTOR)UsbApi.UsbNativeType.Deserialize(
descriptor.Data, 0, typeof(UsbApi.UsbNativeType.USB_STRING_DESCRIPTOR));
result = new String(Encoding.Unicode.GetChars(strDescr.bString, 0, strDescr.bLength));
}
catch (Exception) { result = "Invalid string value"; }
return(result);
}
public IoStatus DeviceIoControl(IOCTLcommand command)
{
return(UsbApi.DeviceIoControl(outHandle, command));
}
internal unsafe static List <UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR> GetConfigurationDescriptors(USBPort port, Byte configIndex)
{
UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST descriptor = new UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST();
descriptor.ConnectionIndex = port.portIndex;
// USBD will automatically initialize these fields:
// bmRequest = 0x80
// bRequest = 0x06
// wValue = Descriptor Type (high) and Descriptor Index (low byte)
descriptor.wValue = (ushort)(((ushort)UsbApi.UsbNativeType.UsbDescriptorType.USB_CONFIGURATION_DESCRIPTOR_TYPE << 8) | (ushort)configIndex);
// wIndex = Zero (or Language ID for String Descriptors)
descriptor.wIndex = (ushort)0;
// wLength = Length of descriptor buffer
descriptor.wLength = (ushort)512;
// Collect the information string
IOCTLcommand ioctl = new IOCTLcommand();
ioctl.ioctlNo = UsbApi.CTL_CODE(0x00000022, (uint)UsbApi.UsbIoctlFunction.USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, 0, 0x0);
ioctl.inputBuffer = UsbApi.UsbNativeType.Serialize(descriptor);
ioctl.outputMaxSize = (uint)Marshal.SizeOf(descriptor);
List <UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR> descriptorList = new List <UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR>();
try
{
// Open Root hub
IntPtr hHub = UsbApi.OpenDevice(port.rootHub.devicePath, true);
IoStatus status = UsbApi.DeviceIoControl(hHub, ioctl);
UsbApi.CloseDevice(hHub);
descriptor = (UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST)UsbApi.UsbNativeType.Deserialize(
status.buffer, 0, typeof(UsbApi.UsbNativeType.USB_DESCRIPTOR_REQUEST));
UsbApi.UsbNativeType.USB_CONFIGURATION_DESCRIPTOR confDescr = (UsbApi.UsbNativeType.USB_CONFIGURATION_DESCRIPTOR)UsbApi.UsbNativeType.Deserialize(
descriptor.Data, 0, typeof(UsbApi.UsbNativeType.USB_CONFIGURATION_DESCRIPTOR));
descriptorList.Add(confDescr);
// Now deserialize all returned descriptors
int descrStart = confDescr.bLength;
UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR common;
while (descrStart < confDescr.wTotalLength)
{
common = (UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR)UsbApi.UsbNativeType.Deserialize(
descriptor.Data, descrStart, typeof(UsbApi.UsbNativeType.USB_COMMON_DESCRIPTOR));
switch (common.DescriptorType)
{
case UsbApi.UsbNativeType.UsbDescriptorType.USB_CONFIGURATION_DESCRIPTOR_TYPE:
common = (UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR)UsbApi.UsbNativeType.Deserialize(
descriptor.Data, descrStart, typeof(UsbApi.UsbNativeType.USB_CONFIGURATION_DESCRIPTOR));
break;
case UsbApi.UsbNativeType.UsbDescriptorType.USB_INTERFACE_DESCRIPTOR_TYPE:
common = (UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR)UsbApi.UsbNativeType.Deserialize(
descriptor.Data, descrStart, typeof(UsbApi.UsbNativeType.USB_INTERFACE_DESCRIPTOR));
break;
case UsbApi.UsbNativeType.UsbDescriptorType.USB_ENDPOINT_DESCRIPTOR_TYPE:
common = (UsbApi.UsbNativeType.IUSB_COMMON_DESCRIPTOR)UsbApi.UsbNativeType.Deserialize(
descriptor.Data, descrStart, typeof(UsbApi.UsbNativeType.USB_ENDPOINT_DESCRIPTOR));
break;
}
descrStart += common.Length;
descriptorList.Add(common);
}
}
catch (Exception) {}
return(descriptorList);
}
