// Return Root Hub for this Controller
public USBHub GetRootHub()
{
var Root = new USBHub {
HubIsRootHub = true, HubDeviceDesc = "Root Hub"
};
// Open a handle to the Host Controller
var h = CreateFile(ControllerDevicePath, GENERIC_WRITE, FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
if (h.ToInt32() == INVALID_HANDLE_VALUE)
{
return(Root);
}
int nBytesReturned;
var HubName = new USB_ROOT_HUB_NAME();
var nBytes = Marshal.SizeOf(HubName);
var ptrHubName = Marshal.AllocHGlobal(nBytes);
// get the Hub Name
if (DeviceIoControl(h, IOCTL_USB_GET_ROOT_HUB_NAME, ptrHubName, nBytes, ptrHubName, nBytes, out nBytesReturned, IntPtr.Zero))
{
HubName = (USB_ROOT_HUB_NAME)Marshal.PtrToStructure(ptrHubName, typeof(USB_ROOT_HUB_NAME));
Root.HubDevicePath = @"\\.\" + HubName.RootHubName;
}
// TODO: Get DriverKeyName for Root Hub
// Now let's open the Hub (based upon the HubName we got above)
var h2 = CreateFile(Root.HubDevicePath, GENERIC_WRITE, FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
if (h2.ToInt32() != INVALID_HANDLE_VALUE)
{
var NodeInfo = new USB_NODE_INFORMATION {
NodeType = (int)USB_HUB_NODE.UsbHub
};
nBytes = Marshal.SizeOf(NodeInfo);
var ptrNodeInfo = Marshal.AllocHGlobal(nBytes);
Marshal.StructureToPtr(NodeInfo, ptrNodeInfo, true);
// get the Hub Information
if (DeviceIoControl(h2, IOCTL_USB_GET_NODE_INFORMATION, ptrNodeInfo, nBytes, ptrNodeInfo, nBytes, out nBytesReturned, IntPtr.Zero))
{
NodeInfo = (USB_NODE_INFORMATION)Marshal.PtrToStructure(ptrNodeInfo, typeof(USB_NODE_INFORMATION));
Root.HubIsBusPowered = Convert.ToBoolean(NodeInfo.HubInformation.HubIsBusPowered);
Root.HubPortCount = NodeInfo.HubInformation.HubDescriptor.bNumberOfPorts;
}
Marshal.FreeHGlobal(ptrNodeInfo);
CloseHandle(h2);
}
Marshal.FreeHGlobal(ptrHubName);
CloseHandle(h);
return(Root);
}
public USBHub GetRootHub()
{
USBHub uSBHub = new USBHub();
uSBHub.HubIsRootHub = true;
uSBHub.HubDeviceDesc = "Root Hub";
IntPtr intPtr = Acer_USB_Library.CreateFile(this.ControllerDevicePath, 1073741824, 2, IntPtr.Zero, 3, 0, IntPtr.Zero);
if (intPtr.ToInt32() != -1)
{
int num = Marshal.SizeOf(default(USB_ROOT_HUB_NAME));
IntPtr intPtr2 = Marshal.AllocHGlobal(num);
int num2 = default(int);
if (Acer_USB_Library.DeviceIoControl(intPtr, 2229256, intPtr2, num, intPtr2, num, out num2, IntPtr.Zero))
{
USB_ROOT_HUB_NAME uSB_ROOT_HUB_NAME = (USB_ROOT_HUB_NAME)Marshal.PtrToStructure(intPtr2, typeof(USB_ROOT_HUB_NAME));
uSBHub.HubDevicePath = "\\\\.\\" + uSB_ROOT_HUB_NAME.RootHubName;
}
IntPtr intPtr3 = Acer_USB_Library.CreateFile(uSBHub.HubDevicePath, 1073741824, 2, IntPtr.Zero, 3, 0, IntPtr.Zero);
if (intPtr3.ToInt32() != -1)
{
USB_NODE_INFORMATION uSB_NODE_INFORMATION = default(USB_NODE_INFORMATION);
uSB_NODE_INFORMATION.NodeType = 0;
num = Marshal.SizeOf(uSB_NODE_INFORMATION);
IntPtr intPtr4 = Marshal.AllocHGlobal(num);
Marshal.StructureToPtr(uSB_NODE_INFORMATION, intPtr4, true);
if (Acer_USB_Library.DeviceIoControl(intPtr3, 2229256, intPtr4, num, intPtr4, num, out num2, IntPtr.Zero))
{
uSB_NODE_INFORMATION = (USB_NODE_INFORMATION)Marshal.PtrToStructure(intPtr4, typeof(USB_NODE_INFORMATION));
uSBHub.HubIsBusPowered = Convert.ToBoolean(uSB_NODE_INFORMATION.HubInformation.HubIsBusPowered);
uSBHub.HubPortCount = uSB_NODE_INFORMATION.HubInformation.HubDescriptor.bNumberOfPorts;
}
Marshal.FreeHGlobal(intPtr4);
Acer_USB_Library.CloseHandle(intPtr3);
}
Marshal.FreeHGlobal(intPtr2);
Acer_USB_Library.CloseHandle(intPtr);
}
return(uSBHub);
}
internal static string DevicePath(this USB_ROOT_HUB_NAME rootHubName)
{
return(@"\\.\" + rootHubName.RootHubName);
}
// Return Root Hub for this Controller
public USBHub GetRootHub()
{
IntPtr h, h2;
USBHub Root = new USBHub();
Root.HubIsRootHub = true;
Root.HubDeviceDesc = "Root Hub";
// Open a handle to the Host Controller
h = CreateFile(ControllerDevicePath, GENERIC_WRITE, FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
if (h.ToInt32() != INVALID_HANDLE_VALUE)
{
int nBytesReturned;
USB_ROOT_HUB_NAME HubName = new USB_ROOT_HUB_NAME();
int nBytes = Marshal.SizeOf(HubName);
IntPtr ptrHubName = Marshal.AllocHGlobal(nBytes);
// get the Hub Name
if (DeviceIoControl(h, IOCTL_USB_GET_ROOT_HUB_NAME, ptrHubName, nBytes, ptrHubName, nBytes, out nBytesReturned, IntPtr.Zero))
{
HubName = (USB_ROOT_HUB_NAME)Marshal.PtrToStructure(ptrHubName, typeof(USB_ROOT_HUB_NAME));
Root.HubDevicePath = @"\\.\" + HubName.RootHubName;
}
// TODO: Get DriverKeyName for Root Hub
// Now let's open the Hub (based upon the HubName we got above)
h2 = CreateFile(Root.HubDevicePath, GENERIC_WRITE, FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
if (h2.ToInt32() != INVALID_HANDLE_VALUE)
{
USB_NODE_INFORMATION NodeInfo = new USB_NODE_INFORMATION();
NodeInfo.NodeType = (int)USB_HUB_NODE.UsbHub;
nBytes = Marshal.SizeOf(NodeInfo);
IntPtr ptrNodeInfo = Marshal.AllocHGlobal(nBytes);
Marshal.StructureToPtr(NodeInfo, ptrNodeInfo, true);
// get the Hub Information
if (DeviceIoControl(h2, IOCTL_USB_GET_NODE_INFORMATION, ptrNodeInfo, nBytes, ptrNodeInfo, nBytes, out nBytesReturned, IntPtr.Zero))
{
NodeInfo = (USB_NODE_INFORMATION)Marshal.PtrToStructure(ptrNodeInfo, typeof(USB_NODE_INFORMATION));
Root.HubIsBusPowered = Convert.ToBoolean(NodeInfo.HubInformation.HubIsBusPowered);
Root.HubPortCount = NodeInfo.HubInformation.HubDescriptor.bNumberOfPorts;
}
Marshal.FreeHGlobal(ptrNodeInfo);
CloseHandle(h2);
}
Marshal.FreeHGlobal(ptrHubName);
CloseHandle(h);
}
return Root;
}
