diff options
| author | Jason McIntyre <jmc@cvs.openbsd.org> | 2005-07-14 13:51:59 +0000 |
|---|---|---|
| committer | Jason McIntyre <jmc@cvs.openbsd.org> | 2005-07-14 13:51:59 +0000 |
| commit | d8d72f5699da99f3f9944cca08b2dd11efd46f33 (patch) | |
| tree | bfd3a72950d03c588128d18f8750b7aff03b17d4 /share/man/man9 | |
| parent | f096a09bfa2d84f81f0505f10e68d2e9bfa92b6a (diff) | |
from netbsd -r1.4:
log message: "Explain how the extension bit works in the bitmap
that tells which fields are present."
ok jsg@ reyk@
Diffstat (limited to 'share/man/man9')
| -rw-r--r-- | share/man/man9/ieee80211_radiotap.9 | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/share/man/man9/ieee80211_radiotap.9 b/share/man/man9/ieee80211_radiotap.9 index 7343f9435cf..ddbde657e5b 100644 --- a/share/man/man9/ieee80211_radiotap.9 +++ b/share/man/man9/ieee80211_radiotap.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ieee80211_radiotap.9,v 1.4 2005/05/25 07:50:47 david Exp $ +.\" $OpenBSD: ieee80211_radiotap.9,v 1.5 2005/07/14 13:51:58 jmc Exp $ .\" .\" Copyright (c) 2004 Bruce M. Simpson <bms@spc.org>, .\" Darron Broad <darron@kewl.org>, @@ -27,7 +27,7 @@ .\" SUCH DAMAGE. .\" .\" $FreeBSD: src/share/man/man9/ieee80211_radiotap.9,v 1.3 2004/07/07 12:59:39 ru Exp $ -.\" $Id: ieee80211_radiotap.9,v 1.4 2005/05/25 07:50:47 david Exp $ +.\" $Id: ieee80211_radiotap.9,v 1.5 2005/07/14 13:51:58 jmc Exp $ .\" .Dd March 2, 2004 .Dt IEEE80211_RADIOTAP 9 @@ -187,7 +187,16 @@ arbitrary, fixed reference. This bit is reserved for any future extensions to the .Vt radiotap structure. -It should not be used at this time. +A driver can set +.Dv IEEE80211_RADIOTAP_EXT +to extend the it_present bitmap by another 64 bits. +The bitmap can be extended by multiples of 32 bits to 96, 128, 160 bits, +or longer, by setting +.Dv IEEE80211_RADIOTAP_EXT +in the extensions. +The bitmap ends at the first extension field where +.Dv IEEE80211_RADIOTAP_EXT +is not set. .El .Sh EXAMPLES Radiotap header for the Realtek RTL8180L driver |