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How to set system time in a Windows WDM driver?

 原文  2010-05-24 14:14:28  7   1    c/ windows/ device-driver/ wdm

Question

We are developing a GPS time sychronization hardware device. And we want write a Windows WDM driver for the device. To avoid the user level latency, we'd like set windows( XP/Vista/7) system time in the kernel driver level. Does anyone know how to achive that?

Thanks Xu Jun

1 answers

solution1
 1  2010-11-29 05:33:01

Did you try NtSetSystemTime? I think it's undocumented.

http://undocumented.ntinternals.net/

See also http://undocumented.ntinternals.net/UserMode/Undocumented%20Functions/Time/NtQuerySystemTime.html

Yyou should use the Zw-prefix functions in your driver.

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