Long Wisdom Port Devices Driver

 



-->

  1. Long Wisdom Port Devices Driver Windows 7
  2. Long Wisdom Port Devices Driver Ed

In this topic you'll use the USB Kernel-Mode Driver template provided with Microsoft Visual Studio Professional 2019 to write a simple kernel-mode driver framework (KMDF)-based client driver. After building and installing the client driver, you'll view the client driver in Device Manager and view the driver output in a debugger.

For an explanation about the source code generated by the template, see Understanding the KMDF template code for a USB client driver.

Prerequisites

  1. In this topic you'll use the USB Kernel-Mode Driver template provided with Microsoft Visual Studio Professional 2019 to write a simple kernel-mode driver framework (KMDF)-based client driver. After building and installing the client driver, you'll view the client driver in Device Manager and view the driver output in a debugger.
  2. Support & Downloads Get troubleshooting, maintenance and warranty information. Download software, drivers and brochures.

Right-click the mouse device and select “ Update driver.” Select “ Search automatically for updated software ” and let Windows find the most suitable one. If Windows finds a new driver and installs. The update may have impacted the ability of the virtual serial port drivers for certain devices to load by default. This poses a significant issue when you are trying to use these devices. First, we will investigate the use of Eltima Software’s Virtual Serial Port Driver to add Windows 10 virtual serial ports.

For developing, debugging, and installing a kernel-mode driver, you need two computers:

  • A host computer running Windows 7 or a later version of the Windows operating system. The host computer is your development environment, where you write and debug your driver.
  • A target computer running Windows Vista or a later version of Windows. The target computer has the kernel-mode driver that you want to debug.

Before you begin, make sure that you meet the following requirements:

Software requirements

  • Your host computer hosts your development environment and has Visual Studio Professional 2019.
  • Your host computer has the latest Windows Driver Kit (WDK) for Windows 8. The kit include headers, libraries, tools, documentation, and the debugging tools required to develop, build, and debug a KMDF driver. To get the latest version of the WDK, see Download the Windows Driver Kit (WDK).
  • Your host computer has the latest version of debugging tools for Windows. You can get the latest version from the WDK or you can Download and Install Debugging Tools for Windows.
  • Your target computer is running Windows Vista or a later version of Windows.
  • Your host and target computers are configured for kernel debugging. For more information, see Setting Up a Network Connection in Visual Studio.

Hardware requirements

Get a USB device for which you will be writing the client driver. In most cases, you are provided with a USB device and its hardware specification. The specification describes device capabilities and the supported vendor commands. Use the specification to determine the functionality of the USB driver and the related design decisions.

If you are new to USB driver development, use the OSR USB FX2 learning kit to study USB samples included with the WDK. You can get the learning kit from OSR Online. It contains the USB FX2 device and all the required hardware specifications to implement a client driver.

You can also get a Microsoft USB Test Tool (MUTT) devices. MUTT hardware can be purchased from JJG Technologies. The device does not have installed firmware installed. To install firmware, download the MUTT software package from this Web site and run MUTTUtil.exe. For more information, see the documentation included with the package.

Recommended reading

  • Developing Drivers with Windows Driver Foundation, written by Penny Orwick and Guy Smith. For more information, see Developing Drivers with WDF.

Instructions

Step 1: Generate the KMDF driver code by using the Visual Studio Professional 2019 USB driver template

Long Wisdom Port Devices Driver Windows 7

For instructions about generating KMDF driver code, see the steps in Writing a KMDF driver based on a template.

For USB-specific code, select the following options in Visual Studio Professional 2019

  1. In the New Project dialog box, in the search box at the top, type USB.
  2. In the middle pane, select Kernel Mode Driver, USB (KMDF).
  3. Select Next.
  4. Enter a project name, choose a save location, and select Create.

The following screen shots show the New Project dialog box for the USB Kernel-Mode Driver template.

This topic assumes that the name of the Visual Studio project is 'MyUSBDriver_'. It contains the following files:

FilesDescription
Public.hProvides common declarations shared by the client driver and user applications that communicate with the USB device.
<Project name>.infContains information required to install the client driver on the target computer.
Trace.hDeclares tracing functions and macros.
Driver.h; Driver.cDeclares and defines driver entry points and event callback routines.
Device.h; Device.cDeclares and defines event callback routine for the prepare-hardware event.
Queue.h; Queue.cDeclares and defines an event callback routine for the event raised by the framework's queue object.

Step 2: Modify the INF file to add information about your device

Before you build the driver, you must modify the template INF file with information about your device, specifically the hardware ID string.

In Solution Explorer, under Driver Files, double-click the INF file.

In the INF file you can provide information such as the manufacturer and provider name, the device setup class, and so on. One piece of information that you must provide is the hardware identifier of your device.

To provide the hardware ID string:

  1. Attach your USB device to your host computer and let Windows enumerate the device.

  2. Open Device Manager and open properties for your device.

  3. On the Details tab, select Hardward Ids under Property.

    The hardware ID for the device is displayed in the list box. Select and hold (or right-click) and copy the hardware ID string.

  4. Replace USBVID_vvvv&PID_pppp in the following line with your hardware ID string.

    [Standard.NT$ARCH$] %MyUSBDriver_.DeviceDesc%=MyUSBDriver__Device, USBVID_vvvv&PID_pppp

Step 3: Build the USB client driver code

To build your driver

  1. Open the driver project or solution in Visual Studio Professional 2019
  2. Select and hold (or right-click) the solution in the Solution Explorer and select Configuration Manager.
  3. From the Configuration Manager, select the Active Solution Configuration (for example, Windows 8 Debug or Windows 8 Release) and the Active Solution Platform (for example, Win32) that correspond to the type of build you're interested in.
  4. From the Build menu, select Build Solution.

For more information, see Building a Driver.

Step 4: Configure a computer for testing and debugging

To test and debug a driver, you run the debugger on the host computer and the driver on the target computer. So far, you have used Visual Studio on the host computer to build a driver. Next you need to configure a target computer. To configure a target computer, follow the instructions in Provision a computer for driver deployment and testing.

Step 5: Enable tracing for kernel debugging

The template code contains several trace messages (TraceEvents) that can help you track function calls. All functions in the source code contain trace messages that mark the entry and exit of a routine. For errors, the trace message contains the error code and a meaningful string. Because WPP tracing is enabled for your driver project, the PDB symbol file created during the build process contains trace message formatting instructions. If you configure the host and target computers for WPP tracing, your driver can send trace messages to a file or the debugger.

To configure your host computer for WPP tracing

  1. Create trace message format (TMF) files by extracting trace message formatting instructions from the PDB symbol file.

    You can use Tracepdb.exe to create TMF files. The tool is located in the <install folder>Windows Kits8.0bin<architecture> folder of the WDK. The following command creates TMF files for the driver project.

    tracepdb -f [PDBFiles] -p [TMFDirectory]

    The -f option specifies the location and the name of the PDB symbol file. The -p option specifies the location for the TMF files that are created by Tracepdb. For more information, see Tracepdb Commands.

    At the specified location you'll see three files (one per .c file in the project). They are given GUID file names.

  2. In the debugger, type the following commands:

    1. .load Wmitrace

      Loads the Wmitrace.dll extension.

    2. .chain

      Verify that the debugger extension is loaded.

    3. !wmitrace.searchpath +<TMF file location>

      Add the location of the TMF files to the debugger extension's search path.

      The output resembles this:

      Trace Format search path is: 'C:Program Files (x86)Microsoft Visual Studio 14.0Common7IDE;c:driverstmf'

To configure your target computer for WPP tracing

Long Wisdom Port Devices Driver

  1. Make sure you have the Tracelog tool on your target computer. The tool is located in the <install_folder>Windows Kits8.0Tools<arch> folder of the WDK. For more information, see Tracelog Command Syntax.

  2. Open a Command Window and run as administrator.

  3. Type the following command:

    tracelog -start MyTrace -guid #c918ee71-68c7-4140-8f7d-c907abbcb05d -flag 0xFFFF -level 7-rt -kd

    The command starts a trace session named MyTrace.

    The guid argument specifies the GUID of the trace provider, which is the client driver. You can get the GUID from Trace.h in the Visual Studio Professional 2019 project. As another option, you can type the following command and specify the GUID in a .guid file. The file contains the GUID in hyphen format:

    tracelog -start MyTrace -guid c:driversProvider.guid -flag 0xFFFF -level 7-rt -kd

    You can stop the trace session by typing the following command:

    tracelog -stop MyTrace

Step 6: Deploy the driver on the target computer

  1. In the Solution Explorer window, select and hold (or right-click) the <project name>Package , and choose Properties.
  2. In the left pane, navigate to Configuration Properties > Driver Install > Deployment.
  3. Check Enable deployment, and check Import into driver store.
  4. For Remote Computer Name, specify the name of the target computer.
  5. Select Install and Verify.
  6. Select Ok.
  7. On the Debug menu, choose Start Debugging, or press F5 on the keyboard.

Note Do not specify the hardware ID of your device under Hardware ID Driver Update. The hardware ID must be specified only in your driver's information (INF) file.

For more information about deploying the driver to the target system in Visual Studio Professional 2019, see Deploying a Driver to a Test Computer.

You can also manually install the driver on the target computer by using Device Manager. If you want to install the driver from a command prompt, these utilities are available:

  • This tool comes with the Windows. It is in WindowsSystem32. You can use this utility to add the driver to the driver store.

    For more information, see PnPUtil Examples.

  • This tool comes with the WDK. You can use it to install and update drivers.

Step 7: View the driver in Device Manager

  1. Enter the following command to open Device Manager:

    devmgmt

  2. Verify that Device Manager shows a node for the following node:

    Samples

    MyUSBDriver_Device

Step 8: View the output in the debugger

Visual Studio first displays progress in the Output window. Then it opens the Debugger Immediate Window. Verify that trace messages appear in the debugger on the host computer. The output should look like this, where 'MyUSBDriver_' is the name of the driver module:

Related topics

Understanding the KMDF template code for a USB client driver
Getting started with USB client driver development

In case a particular USB Port or all the USB Ports on your computer are not working, you should be able to fix the problem by using any of the methods as provided below to fix the issue of USB Ports not working in Windows 10.

USB Ports Not Working in Windows 10

The USB ports on a Windows 10 computer can stop working and become unresponsive due to device drivers getting corrupted, power supply to USB ports being cutoff and other reasons.

Luckily, many users have reported fixing the problem of USB Ports not working in Windows 10 using the following methods.

  1. Power OFF/Start Computer Again
  2. Reinstall Faulty Device Drivers
  3. Disable Fast Startup
  4. Change Power Management Settings
  5. Disable USB Selective Suspend Setting
  6. Check For Updates

Before going ahead with these methods, make sure that the problem is with the USB Port and not with the USB device that you are trying to connect to the computer.

To check, plug in another device into the USB port of your computer and see if it is working. If the new device is also not working, it confirms that the USB Port is not working.

1. Power Off Computer and Start Again

Sometimes the problem of USB Ports not working in Windows 10 can be fixed by the simple act of shutting down your computer and starting it back again.

Simply, power OFF your computer and also unplug the computer from its power source. After waiting for 2 minutes, connect the computer back to its power source and Power it on.

2. Reinstall Faulty Device Drivers

The problem of USB Ports not working in Windows 10 could be due to the drivers for USB Ports getting corrupted.

This issue can be fixed by uninstalling all the Faulty device drivers and allowing Windows to automatically reinstall the drivers back on your computer.

1. Right-click on the Start button and then click on Device Manager.

2. On the Device Manager screen, right-click on the USB Controllers with an exclamation mark and click on Uninstall in the contextual menu.

4. Repeat the above steps for other USB Controllers with exclamation marks.

5.Restart your computer.

Once your computer restarts, Windows should automatically load the right drivers as required for USB Ports on your computer.

3. Disable Fast Startup

The Fast Startup option as available in Windows 10 can sometimes lead to Windows skipping USB Ports during the start up process.

1. Open the Control Panel on your computer.

2. On the Control Panel Screen, click on Hardware and Sound > Change What Power Buttons Do link.

3. On the next screen, scroll down to “Shutdown Settings” and uncheck Turn on fast startup option.

With Fast Startup disabled you will find your computer booting up a bit slower, but you may not even notice the difference.

4. Change Power Management Setting For USB Root Hub

The default tendency of Windows computer to turn-off power supply to unused USB ports and external device can cause the problem of USB Ports not working in Windows 10.

Long Wisdom Port Devices Driver Ed

1. Right-Click on Start button and then click on Device Manager option.

2. On the device Manager Screen, right-click on USB Root Hub and click on Properties.

3. On the Properties screen, click on Power Management tab and uncheck the option for “Allow the computer to turn off this device to save power” and click on OK.

In case you have more USB Root Hubs, you will need to repeat the above steps for them as well.

5. Disable USB Selective Suspend Setting

In case all the USB Ports are not working on your computer, you can disable Selective Suspend Power Setting for all the USB Ports on your computer.

1. Open Control Panel on your computer.

2. On the Control Panel Screen, make sure that you are in “Category” view and click on System and Security.

3. On the System and Security Screen, click on Power Options.

4. On Power Options screen, click on Change Plan Settings link located next to the current Power Plan.

5. Next, click on Change Advanced Power Settings link.

6. On the next screen, click on USB Settings > USB selective suspend setting and select disabled option for “Plugged In” and also for “On Battery” in case you are using a Laptop.

7. Click on OK to save above settings.

6. Check For Updates

See if an Update is available for your computer. If an update is available, Windows will also install the latest available drivers for USB Ports on your computer.

1. Click on the Start button > Settings Icon > Updates & Security.

2. On the Update and Security screen, click on Windows Update in the side menu and click on Check For Updates button.

Devices

3. Allow Windows to check for available updates and install them onto your computer

In case updates are available, the latest available device drivers will also be installed on your computer.