Re: MCS field: RFA
Matteo Croce <[email protected]>
| Newsgroups | org.netbsd.radiotap |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Jan 27, 2010 at 4:30 PM, David Young <[email protected]> wrote: > On Wed, Jan 27, 2010 at 10:36:05AM +0100, Johannes Berg wrote: >> On Tue, 2010-01-26 at 11:47 -0600, David Young wrote: >> >> > FreeBSD uses the flags field and the channel flags to indicate Short >> > GI and 40 MHz frames. Let's adopt the FreeBSD definitions for that >> > purpose. >> >> I'd mostly agree, but I'm not sure what they really use the 40MHz flag >> for. For instance, might there be value in knowing that the AP opened >> the channel for 40MHz, but for some reason we are doing 20MHz >> transmissions instead? And would this be an appropriate way of >> conferring that information? > > I should take a closer look at the implementation. A per-packet radio > information header does not need to carry the information of what the > AP could have done, but didn't, does it? I think it should carry the > information that describes the properties of the packet. > > Dave > > -- > David Young OJC Technologies > [email protected] Urbana, IL * (217) 278-3933 > The channel width is a packet property in 802.11n IIRC