/// <summary>Return Root Hub for this Controller</summary>
internal UsbHub GetRootHub()
{
IntPtr h, h2;
UsbHub root = new UsbHub {
HubIsRootHub = true, 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 == INVALID_HANDLE_VALUE)
{
return(root);
}
UsbRootHubName hubName = new UsbRootHubName();
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 _,
IntPtr.Zero))
{
hubName = (UsbRootHubName)Marshal.PtrToStructure(ptrHubName, typeof(UsbRootHubName));
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 != INVALID_HANDLE_VALUE)
{
UsbNodeInformation nodeInfo = new UsbNodeInformation {
NodeType = (int)UsbHubNode.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 _, IntPtr.Zero))
{
nodeInfo =
(UsbNodeInformation)Marshal.PtrToStructure(ptrNodeInfo, typeof(UsbNodeInformation));
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);
}
/// <summary>
/// 增加USB节点信息
/// </summary>
/// <param name="Items">要增加的列表</param>
/// <param name="Info">要增加的信息</param>
private static void Add(ref List <ListViewUsbItem> Items, UsbNodeInformation Info)
{
if (Info.NodeType == USB_HUB_NODE.UsbHub)
{
Items.Add(new ListViewUsbItem("Name", Info.Name));
Items.Add(new ListViewUsbItem("PNPDeviceID", Info.PNPDeviceID));
Items.Add(new ListViewUsbItem("DevicePath", Info.DevicePath));
Items.Add(new ListViewUsbItem("NodeType", Info.NodeType.ToString()));
Items.Add(new ListViewUsbItem("HubIsBusPowered", Info.HubIsBusPowered.ToString()));
Items.Add(new ListViewUsbItem("NumberOfPorts", Info.NumberOfPorts.ToString()));
Items.Add(new ListViewUsbItem("HubCharacteristics", "0x" + Info.HubCharacteristics.ToString("X4")));
Items.Add(new ListViewUsbItem("PowerOnToPowerGood", (Info.PowerOnToPowerGood * 2).ToString() + "ms"));
Items.Add(new ListViewUsbItem("HubControlCurrent", Info.HubControlCurrent.ToString()));
}
else
{
Items.Add(new ListViewUsbItem("Name", Info.Name));
Items.Add(new ListViewUsbItem("PNPDeviceID", Info.PNPDeviceID));
Items.Add(new ListViewUsbItem("DevicePath", Info.DevicePath));
Items.Add(new ListViewUsbItem("NodeType", Info.NodeType.ToString()));
Items.Add(new ListViewUsbItem("NumberOfInterfaces", Info.NumberOfInterfaces.ToString()));
}
}
/// <summary>return a down stream external hub</summary>
/// <returns>Downstream external hub</returns>
internal UsbHub GetHub()
{
if (!PortIsHub)
{
return(null);
}
var hub = new UsbHub();
IntPtr h, h2;
hub.HubIsRootHub = false;
hub.HubDeviceDesc = "External Hub";
// Open a handle to the Host Controller
h = CreateFile(PortHubDevicePath, GENERIC_WRITE, FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, 0,
IntPtr.Zero);
if (h == INVALID_HANDLE_VALUE)
{
return(hub);
}
// Get the DevicePath for downstream hub
var nodeName = new UsbNodeConnectionName
{
ConnectionIndex = PortPortNumber
};
int nBytes = Marshal.SizeOf(nodeName);
IntPtr ptrNodeName = Marshal.AllocHGlobal(nBytes);
Marshal.StructureToPtr(nodeName, ptrNodeName, true);
// Use an IOCTL call to request the Node Name
if (DeviceIoControl(h, IOCTL_USB_GET_NODE_CONNECTION_NAME, ptrNodeName, nBytes, ptrNodeName, nBytes,
out _, IntPtr.Zero))
{
nodeName = (UsbNodeConnectionName)Marshal.PtrToStructure(ptrNodeName,
typeof(UsbNodeConnectionName));
hub.HubDevicePath = @"\\.\" + nodeName.NodeName;
}
// Now let's open the Hub (based upon the HubName we got above)
h2 = CreateFile(hub.HubDevicePath, GENERIC_WRITE, FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, 0,
IntPtr.Zero);
if (h2 != INVALID_HANDLE_VALUE)
{
var nodeInfo = new UsbNodeInformation
{
NodeType = (int)UsbHubNode.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 _, IntPtr.Zero))
{
nodeInfo = (UsbNodeInformation)Marshal.PtrToStructure(ptrNodeInfo, typeof(UsbNodeInformation));
hub.HubIsBusPowered = Convert.ToBoolean(nodeInfo.HubInformation.HubIsBusPowered);
hub.HubPortCount = nodeInfo.HubInformation.HubDescriptor.bNumberOfPorts;
}
Marshal.FreeHGlobal(ptrNodeInfo);
CloseHandle(h2);
}
// Fill in the missing Manufacture, Product, and SerialNumber values
// values by just creating a Device instance and copying the values
UsbDevice device = GetDevice();
hub.HubInstanceId = device.DeviceInstanceId;
hub.HubManufacturer = device.Manufacturer;
hub.HubProduct = device.Product;
hub.HubSerialNumber = device.SerialNumber;
hub.HubDriverKey = device.DriverKey;
Marshal.FreeHGlobal(ptrNodeName);
CloseHandle(h);
return(hub);
}
/// <summary>
/// 生成USB属性列表
/// </summary>
/// <param name="Data">用于生成列表的USB数据</param>
/// <returns>属性列表</returns>
public static List <ListViewUsbItem> UsbDetail(Object Data)
{
if (Data is String)
{ // 机器名
String Info = Data as String;
if (!String.IsNullOrEmpty(Info))
{
String[] Content = Info.Split(new Char[] { ':' });
if (Content.Length == 2)
{
return(new List <ListViewUsbItem>(1)
{
new ListViewUsbItem(Content[0], Content[1])
});
}
}
}
else if (Data is HostControllerInfo)
{ // 主控制器信息
HostControllerInfo Info = (HostControllerInfo)Data;
return(new List <ListViewUsbItem>(3)
{
new ListViewUsbItem("Name", Info.Name),
new ListViewUsbItem("PNPDeviceID", Info.PNPDeviceID),
new ListViewUsbItem("HcdDriverKeyName", Info.HcdDriverKeyName)
});
}
else if (Data is UsbNodeInformation)
{ // USB节点信息
UsbNodeInformation Info = (UsbNodeInformation)Data;
List <ListViewUsbItem> Items = new List <ListViewUsbItem>();
Add(ref Items, Info);
return(Items);
}
else if (Data is UsbNodeConnectionInformation)
{ // USB节点连接信息
UsbNodeConnectionInformation Info = (UsbNodeConnectionInformation)Data;
if (Info.ConnectionStatus != USB_CONNECTION_STATUS.DeviceConnected)
{
return(null);
}
List <ListViewUsbItem> Items = new List <ListViewUsbItem>();
Add(ref Items, Info);
return(Items);
}
else if (Data is ExternalHubInfo)
{ // 外部Hub信息
ExternalHubInfo Info = (ExternalHubInfo)Data;
List <ListViewUsbItem> Items = new List <ListViewUsbItem>();
// 加入USB节点信息
Items.Add(new ListViewUsbItem("Node Information:", null));
Add(ref Items, Info.NodeInfo);
// 加入USB节点连接信息
Items.Add(new ListViewUsbItem(null, null));
Items.Add(new ListViewUsbItem("Node Connection Information:", null));
Add(ref Items, Info.NodeConnectionInfo);
return(Items);
}
return(null);
}
