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This topics in this section describe the class drivers, generic client driver, and the parent composite driver that are provided by Microsoft.
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Microsoft-provided USB drivers for controllers and hubs
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Microsoft provides these set of drivers:
- For USB host controllers and hubs. For more information, see USB host-side drivers in Windows. You can develop a custom host controller driver that communicates with the USB host controller extension (UCX) driver. For more information, see Developing Windows drivers for USB host controllers.
- For handling common function logic for USB devices. For more information, see USB device-side drivers in Windows.
- For supporting Type-C connectors. For more information, see USB connector manager class extension (UcmCx).
Other Microsoft-provided USB drivers
| Device setup class | Microsoft-provided driver and INF | Windows support | Description |
|---|---|---|---|
| USB | Usbccgp.sys Usb.inf | Windows 8.1 Windows 8 Windows 7 Windows Vista Windows XP | Usbccgp.sys is a parent driver for composite devices that supports multiple functions. For more information, see USB Generic Parent Driver (Usbccgp.sys). |
| Biometric | WudfUsbBID.dll WudfUsbBIDAdvanced.inf | Windows 8.1 Windows 8 | Microsoft supports USB biometric devices (fingerprint readers) by providing the Windows Biometric Framework. See the Windows Biometric Framework. |
| Media Transfer Protocol Devices | Wpdusb.sys (Obsolete) | Windows Server 2008 Windows Vista Windows Server 2003 Windows XP | Note Starting in Windows 7, Microsoft has replaced the kernel mode component of the Windows Vista USB driver stack (Wpdusb.sys) for Windows Portable Devices (WPD) with the generic Winusb.sys. Microsoft provides the Wpdusb.sys driver to manage portable devices that support the Media Transfer Protocol. See WPD Design Guide. |
| USBDevice | Winusb.sys Winusb.inf | Windows 8.1 Windows 8 Windows 7 Windows Vista Windows XP with Service Pack 2 (SP2) | Winusb.sys can be used as the USB device's function driver instead of implementing a driver. See WinUSB. |
Microsoft Usb Camera Driver
Microsoft-provided USB device class drivers
Microsoft provides drivers for several USB device classes approved by USB-IF. These drivers and their installation files are included in Windows. They are available in the WindowsSystem32DriverStoreFileRepository folder.
See, USB device class drivers included in Windows.
Related topics
Recover microsoft word program. Universal Serial Bus (USB)
USB Driver Development Guide
If you are providing a driver for a webcam or a digital camcorder, consider using the system-supplied universal serial bus (USB) Video Class driver, Usbvideo.sys. The USB Video Class (UVC) driver is a Microsoft-provided AVStream minidriver that provides driver support for USB Video Class devices. When your device uses UVC, you do not need to supply your own driver. Instead, the device works automatically with the system-supplied driver.
In the USB Video Class model, vendors do not write drivers; instead, vendors implement video streaming hardware according to the guidelines in the Universal Serial Bus Device Class Definition for Video Devices Specification. The UVC driver queries the hardware directly to obtain its capabilities and then drives the device, with no proprietary driver required.
You can optionally extend UVC driver functionality to add vendor-specific processing.
The following table shows support for UVC in different versions of Windows:
| UVC Version | Windows Vista/XP | Windows 7 | Windows 8 |
|---|---|---|---|
| USB Video Class 1.5 (H.264 video codec) | Not supported | Not supported | Supported |
| USB Video Class 1.1 | Not supported | Supported | Supported |
| USB Video Class 1.0 | Supported | Supported | Supported |
Beginning with Windows 8, the H.264 video codec (encoder/decoder) is supported. H.264 is an open standard that allows efficient video compression techniques for reducing the use of network bandwith and storage space. This leads to a higher video quality for a given bit rate. For more information, see USB H.264 Video Cameras Support. Also refer to the Microsoft Proposed Extensions to the USB Video Class for H.264.
The following list shows some advantages to using the Usbvideo.sys driver:
- No CD required for installation
- No driver writing cost
- No maintenance cost
- Opportunity for vendors to add functionality
- Easier debugging with public symbols
- Works with Driver Verifier
- Works with checked OS builds
- Compliant with ACPI power management
- Compliant with Selective Suspend power management
- Supports multimedia APIs in Media Foundation and DirectShow
The system-supplied Usbvideo.sys driver supports the following UVC features in different versions of Windows:
| UVC feature | Windows Vista/XP | Windows 7 | Windows 8 |
|---|---|---|---|
| Single video control interface and one or more video streaming interfaces | Supported | Supported | Supported |
| Standard units and terminals, including Extension units | Supported | Supported | Supported |
| Still image capture support for all three methods defined in the UVC specification | Supported | Supported | Supported |
| Bulk and isochronous devices | Supported | Supported | Supported |
| Streaming parameter negotiation using probe commit controls | Supported | Supported | Supported |
| Compressed formats: MJPEG, DV | Supported | Supported | Supported |
| Uncompressed formats: YUY2, NV12 | Supported | Supported | Supported |
| Supports both capture and render devices | Supported | Supported | Supported |
| Compressed format: MPEG2TS | Not Supported | Not Supported | Not Supported |
| Stream-based and frame-based formats | Not supported | Supported | Supported |
| H.264 video codec | Not Supported | Not Supported | Supported |
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Customizing the UVC Driver
You can customize your support for UVC by supplying an Extension Unit plug-in. Extension units provide a private control channel between device and vendor-supplied application.
Additional Resources
To test your UVC implementation, you can use the following tools:
- GraphEdit
- KsStudio
- USBView
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For more information about these tools, see AVStream Testing and Debugging.
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You can download a compressed set of specifications for USB Video Class 1.1 from the Device Class page on the USB Implementers Forum website.