What Is Whql Software Can Access
Documents section of this site. The functions available are listed in the D2XX Programmer’s Guide document which is available from the. Application software can access the USB device through a series of DLL function calls. D2XX drivers allow direct access to the USB device through a DLL.
A company can choose to sign their own drivers rather than go through the WHQL testing process. It is not something you enable/disable in the motherboard BIOS/UEFI, or something to download and install.For device drivers passing the WHQL tests, Microsoft creates a digitally signed certification file that, when included in the driver installation package allows installation on 64-bit versions of Windows and prevents 32-bit versions of Windows Vista and all versions of Windows XP from displaying a warning message that the driver has not been certified by Microsoft (see Windows XP screenshot on the right).New since June 2007 is the requirement of an Audio Fidelity Test equipment (Audio Precision SYS-2722-A-M) for System Submissions. It is a Microsoft certification process and signature of drivers. Microsoft setup WHQL facility to ensure that the drivers that are packed with the Windows CD or DVD and Windows Updates that you download regularly are tested by professionals using a compatibility suite of various tests to ensure that these drivers will work flawlessly with your Windows version.whql means: Windows Hardware Quality Labs. The actual logo used depends on the version of Microsoft Windows.What is WHQL Certified or WHQL signed Drivers WHQL stands for Windows Hardware Quality Labs. The purpose of WHQL testing beyond simply the opportunity to place the Windows logo on your device is to demonstrate that all drivers used by your hardware or software can be run without any compatibility issues.Products that pass the WHQL tests get to use a "Certified for Windows" logotype, which certifies that the hardware or software has had some share of testing by Microsoft to ensure compatibility.
This fee covers both 32-bit (x86) and 64-bit (x64) versions, if submitted simultaneously, and is non-refundable. One way to avoid the Found New Hardware Wizard from popping up on Windows XP is by pre-installing a WHQL certified driver before the device is plugged in.Microsoft no longer requires a WHQL testing fee, which used to be US$250 per operating system family. Some device drivers that have passed the WHQL tests are also made available for download using Windows Update or the Microsoft Update Catalog.When Windows XP detects a new device for which it does not have built-in drivers, it will show a Found New Hardware Wizard (see screenshot on the right). However, it will not install without a warning message on Windows XP.
Windows Hardware Developer Central website. ^ "Digital Signatures for Kernel Modules on Systems Running Windows Vista". Retrieved 7 February 2011. Archived from the original on 12 December 2009.
Retrieved 22 November 2011. ^ "Windows Logo Kit 1.6 Step by Step Guide". Cite journal requires |journal= ( help) Retrieved 7 February 2011. Microsoft Corporation: 28. "DTM Global WHQL Policies Draft" ( DOC).
0 kommentar(er)
