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If you are developing on Windows and want to connect a device for testing,then you need to install the appropriate USB driver. This pageprovides links to the web sites for several original equipment manufacturers (OEMs),where you can download the appropriate USB driver for your device.

• Provide an INF file that specifies the Ports device setup class and the Serial function driver as the service for the port. To configure a serial port as COM port, comply with the requirements that are defined in Configuration of COM Ports.
• PC Pitstop - PC Performance Roots. PC Pitstop began in 1999 with an emphasis on computer diagnostics and maintenance. During the early days of the dot com boom, our online PC maintenance tools were skyrocketing.

This Generic USB Driver can recognize most USB drive's if you are still using the Windows 98 OS. This driver has not been updated for several years, and it won't be updated. Welcome to the NETGEAR Download Center!! To find documentation, firmware, software, or other files, enter a whole or partial Model number in the text search box. Download the latest drivers, firmware, and software for your HP Z620 Workstation.This is HP’s official website that will help automatically detect and download the correct drivers free of cost for your HP Computing and Printing products for Windows and Mac operating system.

If you're developing on Mac OS X or Linux, then you shouldn't need a USB driver.Instead read Using Hardware Devices.

To connect and debug with any of the Google Nexus devices using Windows, youneed to install the Google USB driver.

Install a USB driver

First, find the appropriate driver for your device from the OEM driverstable below.

Once you've downloaded your USB driver, follow the instructions below to install or upgrade thedriver, based on your version of Windows and whether you're installing for the first timeor upgrading an existing driver. Then see Using Hardware Devices forother important information about using an Android device fordevelopment.

Caution:You may make changes to android_winusb.inf file found insideusb_driver (for example, to add support for other devices),however, this will lead to security warnings when you install or upgrade thedriver. Making any other changes to the driver files may break the installationprocess.

Windows 10

To install the Android USB driver on Windows 10 for the first time, do the following:

1. Connect your Android device to your computer's USB port.
2. From Windows Explorer, open Computer Management.
3. In the Computer Management left pane, select Device Manager.
4. In the Device Manager right pane, locate and expand Portable Devices or Other Devices, depending on which one you see.
5. Right-click the name of the device you connected, and then select Update Driver Software.
6. In the Hardware Update wizard, select Browse my computer for driver software and click Next.
7. Click Browse and then locate the USB driver folder. For example, the Google USB Driver is located in android_sdkextrasgoogleusb_driver.
8. Click Next to install the driver.

Windows 8.1

To install the Android USB driver on Windows 8.1 for the first time, do the following:

1. Connect your Android device to your computer's USB port.
2. Access search, as follows:

   Touch screen: On your computer, swipe in from the right edge of the screen and tap Search.

   Using a mouse: Point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.

3. In the search box, type into and then click Device Manager.
4. Double-click the device category, and then double-click the device you want.
5. Click the Driver tab, click Update Driver, and follow the instructions.

Windows 7

To install the Android USB driver on Windows 7 for the first time, do the following:

1. Connect your Android device to your computer's USB port.
2. Right-click on Computer from your desktop or Windows Explorer, and select Manage.
3. Select Devices in the left pane.
4. Locate and expand Other device in the right pane.
5. Right-click the device name (such as Nexus S) and select Update Driver Software. This will launch the Hardware Update Wizard.
6. Select Browse my computer for driver software and click Next.
7. Click Browse and locate the USB driver folder. (The Google USBDriver is located in android_sdkextrasgoogleusb_driver.)
8. Click Next to install the driver.

Or, to upgrade an existing Android USB driver on Windows 7 and higher with the newdriver:

1. Connect your Android device to your computer's USB port.
2. Right-click on Computer from your desktop or Windows Explorer, and select Manage.
3. Select Device Manager in the left pane of the Computer Management window.
4. Locate and expand Android Phone in the right pane.
5. Right-click on Android Composite ADB Interface and select Update Driver. This will launch the Hardware Update Wizard.
6. Select Install from a list or specific location and click Next.
7. Select Search for the best driver in these locations; uncheckSearch removable media; and check Include this location in thesearch.
8. Click Browse and locate the USB driver folder. (The Google USBDriver is located in android_sdkextrasgoogleusb_driver.)
9. Click Next to upgrade the driver.

Get OEM drivers

If you don't see a link for the manufacturer of your device here, go to the support section of the manufacturer's website and search for USB driver downloads for your device.

By Mark Russinovich

Published: January 12, 2012

Download Portmon(226 KB)
Run now from Sysinternals Live.

Introduction

Portmon is a utility that monitors and displays all serial andparallel port activity on a system. It has advanced filtering and searchcapabilities that make it a powerful tool for exploring the way Windowsworks, seeing how applications use ports, or tracking down problems insystem or application configurations.

Portmon 3.x

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Version 3.x of Portmon marks the introduction of a number of powerfulfeatures.

• Remote monitoring: Capture kernel-mode and/or Win32 debug outputfrom any computer accessible via TCP/IP - even across the Internet.You can monitor multiple remote computers simultaneously. Portmonwill even install its client software itself if you are running iton a Windows NT/2K system and are capturing from another WindowsNT/2K system in the same Network Neighborhood.
• Most-recent-filter lists:Portmon has been extended withpowerful filtering capabilities and it remembers your most recentfilter selections, with an interface that makes it easy to reselectthem.
• Clipboard copy: Select multiple lines in the output window andcopy their contents to the clipboard.
• Highlighting: Highlight debug output that matches yourhighlighting filter, and even customize the highlighting colors.
• Log-to-file: Write debug output to a file as its being captured.
• Printing: Print all or part of captured debug output to aprinter.
• One-file payload:Portmon is now implemented as one file.

The on-line help-file describes all these features, and more, in detail.

Installation and Use

Simply execute the Portmon program file (portmon.exe) and Portmonwill immediately start capturing debug output. To run Portmon onWindows 95 you must get the WinSock2update from Microsoft. Notethat if you run Portmon on Windows NT/2K portmon.exe must be locatedon a non-network drive and you must have administrative privilege.Menus, hot-keys, or toolbar buttons can be used to clear the window,save the monitored data to a file, search output, change the windowfont, and more. The on-line help describes all of Portmon's features.

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Portmon understands all serial and parallel port I/O control (IOCTLs)commands and will display them along with interesting informationregarding their associated parameters. For read and write requestsPortmon displays the first several dozen bytes of the buffer, using'.' to represent non-printable characters. The Show Hex menu option letsyou toggle between ASCII and raw hex output of buffer data.

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How it Works: WinNT

The Portmon GUI is responsible for identifying serial and parallelports. It does so by enumerating the serial ports that are configuredunder HKEY_LOCAL_MACHINEHardwareDeviceMapSerialComm and theparallel ports defined underHKEY_LOCAL_MACHINEHardwareDeviceMapParallel Ports. These keyscontain the mappings between serial and parallel port device names andthe Win32-accessible names.

When you select a port to monitor, Portmon sends a request to itsdevice driver that includes the NT name (e.g. deviceserial0) thatyou are interested in. The driver uses standard filtering APIs to attachits own filter device object to the target device object. First, it usesZwCreateFile to open the target device. Then it translates thehandle it receives back from ZwCreateFile to a device objectpointer. After creating its own filter device object that matches thecharacteristics of the target, the driver callsIoAttachDeviceByPointer to establish the filter. From that point onthe Portmon driver will see all requests aimed at the target device.

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Portmon has built-in knowledge of all standard serial and parallelport IOCTLs, which are the primary way that applications and driversconfigure and read status information from ports. The IOCTLs are definedin the DDK file ddksrccommincntddser.h andddksrccommincntddpar.h, and some are documented in the DDK.

How it Works: Windows 95 and 98

On Windows 95 and 98, the Portmon GUI relies on a dynamically loadedVxD to capture serial and parallel activity. The Windows VCOMM (VirtualCommunications) device driver serves as the interface to parallel andserial devices, so applications that access ports indirectly use itsservices. The Portmon VxD uses standard VxD service hooking tointercept all accesses to VCOMM's functions. Like its NT device driver,Portmon's VxD interprets requests to display them in a friendlyformat. On Windows 95 and 98 Portmon monitors all ports so there is noport selection like on NT.

Download Portmon(226 KB)

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