Changing the SIFS time (and hence the DIFS time) will not affect CCA -
the card will still not transmit if it detects a carrier...

Cheers,

--
Jonathan Guerin



On Mon, Sep 27, 2010 at 2:40 PM, shashi raj singh
<singh_shashi...@yahoo.com> wrote:
> Hi Ryan,
>
> I am also trying to stop CCA ... after some research, I found these values.
>
> You can try these values and let me know if it works.(last time I saw, these 
> values were not defined in ath5k reg.h)
>
> DIAG_FORCE_RXCLR                (1<<20)
> DIAG_IGNORE_NAV                 (1<<21)
>
> code: you will require to convert this code to ath5k specific
>
> OS_REG_WRITE(ah, AR_DIAG_SW, (OS_REG_READ(ah, AR_DIAG_SW) | 
> (DIAG_FORCE_RXCLR+DIAG_IGNORE_NAV)) );
>
> But I am not sure if this will stop CCA because I think CCA will take place 
> although with forced rxclr.
>
> You can also work on reducing SIFS and slot times that is reducing DIFS (CCA 
> period) and see what happens.
>
>
> Pls let me know your findings.
>
> Shashi
>
>
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