On Tuesday 13 July 2010 03:34:50 pm Samuel Xu wrote:
Hi, Cascardo:
Thanks for reply! I just want to get the guide on some sample code of
HPET usage invoked from kernel mode driver.
You must not use hpet directly to keep track of the time.
There is HW which does not have an hpet, or the kernel
HI:
I am a freshman for HPET timer. Previously, I use TSC counter, to use
rdtsc to get the time stamp. elapsed cycle can be counter from 2 time
stamps.
As a advanced replacement of TSC, I suppose HPET timer can be
conveniently to read time stamp from both kernel mode user and user
mode apps.
On Tue, Jul 13, 2010 at 05:39:11PM +0800, Samuel Xu wrote:
I tried hpet_readl() from my driver code, while hit compiling error.
is it a correct API for kernel driver to invoke? any more hint?
What are you trying to do exactly? Using TSC or HPET is not
platform-independent. You may take a look
Hi, Cascardo:
Thanks for reply! I just want to get the guide on some sample code of
HPET usage invoked from kernel mode driver.
Any directly guide?
Thanks!
2010/7/13 Thadeu Lima de Souza Cascardo casca...@holoscopio.com:
On Tue, Jul 13, 2010 at 05:39:11PM +0800, Samuel Xu wrote:
I tried
On Tue, Jul 13, 2010 at 09:34:50PM +0800, Samuel Xu wrote:
Hi, Cascardo:
Thanks for reply! I just want to get the guide on some sample code of
HPET usage invoked from kernel mode driver.
Any directly guide?
Thanks!
You asked if this is the right API. And the answer depends on what do
you
