ieee80211 ms and tu convert macros

Sepherosa Ziehau sepherosa at gmail.com
Fri Feb 22 01:33:28 UTC 2008


On Thu, Feb 21, 2008 at 1:30 AM, Barbieri, Paul  (US SSA)
<paul.barbieri at baesystems.com> wrote:
> I happened to be looking in net80211/ieee80211_var.h and examined the
>  macros IEEE80211_MS_TO_TU and IEEE80211_TU_TO_MS. The conversions seem
>  backward to me. The macros are:
>
>
>
>  #define IEEE80211_MS_TO_TU(x)          (((x) * 1000) / 1024)
>
>  #define IEEE80211_TU_TO_MS(x)          (((x) * 1024) / 1000)
>
>
>
>  If I take the values:
>
>             1 second = 1000 milliseconds (ms) = 1024 timer units (tu)

Please reread 802.11-1999, page 6, 3.45:
one tu is 1024us

Best Regards,
sephe

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