Re: [Madwifi-devel] Interrupt Driven Microsecond Timer

[Amy L. <mei...@an...>]

Hi Eric,

Do you mean "hardware-triggered" timer? If so, I'd be very interested to
know how you do that. I need a 10-microsecond resolution  timer. However,
linux does not provide timers with that high resolution. (mdelay and udelay
are just busy polling...) 

Thanks,
M-H.  


-----Original Message-----
From: Eric W Anderson [mailto:Eric.Anderson@Colorado.EDU] 
Sent: Wednesday, March 12, 2008 2:42 PM
To: prasad hegde
Cc: Dan Dechene; mad...@li...
Subject: Re: [Madwifi-devel] Interrupt Driven Microsecond Timer

I think I've mentioned this before on this list, but our group has done
timing
work using the card's on-chip clock.  It's pretty easy to do; what are you
trying to do, and what do you mean by "interrupt-driven"?

Thus spake prasad hegde (pra...@gm...):

>    Hi,
>     
>    AFAIK    do_gettimeofday( struct timeval *tv)  provides time in
>    microsecond resolution in kernel. 
>     
>    Thanks
>    Prasad
> 
>     
>    On 3/12/08, Dan Dechene <dde...@gm...> wrote:
> 
>      Hi All,
>       
>      I wanted to know if anyone has implemented a microsecond resolution
>      timer in the driver. I am assuming that this would be hardware
driven,
>      but am unsure.
>       
>      Any assistance would be appreciated,
>       
>      Thanks
>       
>      Dan
>
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-- 
Eric W. Anderson                                   University of Colorado
eri...@co...                      Dept. of Computer Science
phone: +1-720-984-8864                   Systems Research Lab - ECCR 1B54

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