Re: Radiotap Header: MAC Timestamp

Zhu Yi <yi.zhu <at> intel.com> writes:

> 
> On Mon, 2006-07-10 at 11:12 +0800, Zhu Yi wrote:
> > I'd prefer saying "don't know" than giving a "wrong" number.
> 
> [PATCH] ipw2200: remove the MAC timestamp present field from radiotap
> 
> IEEE80211_RADIOTAP_TSFT is defined as the Value in microseconds of the
> MAC's 64-bit 802.11 Time Synchronization Function timer when the first
> bit of the MPDU arrived at the MAC. Since ipw2200 hardware doesn't
> provide this value, we disable this feature from the radiotap header
> present flag.
> 
> Thanks,
> -yi
> 
> Attachment (ipw2200-1.1.3-remove-rt_tsf.patch): text/x-patch, 1673 bytes
> 

Thank you for your help.

I noticed the problem when I was comparing the radiotap headers of the ipw2200
and what I captured from an atheros chipset using madwifi driver. Also, the
support for SSI Signal and SSI Noise seems to limited for the same in terms of
populating the header.

Regards,
Vaibhav Gupta




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