WDM versus VxD

[Finn]

Ποια η διαδορα μεταξυ WDM και vxd drivers?

[paredwse]

Προφανώς εννοείς την διαφορά μεταξύ του Win32 Driver Module (WDM) και των Virtual Device Drivers (VxD).

 

Επειδή είμαι λίγο χάλιας στο να μεταφέρω τεχνικές πληροφορίες από τα αγγλικά στα ελληνικά, παραθέτω αυτούσιο το κείμενο από την Knowledge Base της Microsoft:

 

Virtualization Driver

A virtualization device driver (VxD) is a 32-bit, protected-mode driver that manages system resources, such as a hardware device or a program, so that more than one program can use a resource at the same time. The term "VxD" refers to a generic virtual device driver, where the "x" represents the type of device driver. For example, a virtual device driver for a display adapter is known as a VDD (virtual display driver), a virtual device driver for a timer device is a VTD, a virtual device driver for a printer device is a VPD, and so on.

 

While a VxD dynamically supports device drivers, the virtual device keeps track of the status of the device for programs that use the specific device.

 

και

 

Win32 Driver Model

Windows 98 also uses the Win32 Driver Model (WDM) architecture, which provides a common set of input/output (I/O) services that can be understood by Windows 98 and future versions of Microsoft Windows NT. With WDM architecture, developers can write a single device driver for both operating systems.

 

Πηγή: ;Q253671]http://support.microsoft.com/default.aspx?scid=kb;[LN];Q253671

 

Περισσότερες πληροφορίες για το Win32 Driver Model: http://www.microsoft.com/technet/prodtechnol/win98/reskit/part6/wrkc30.asp?frame=true

 

<small>[ 26-10-2002, 19:54: Το μήνυμα επεξεργάστηκε από: paredwse ]</small>