Re: MCS field: RFA

On Tue, Feb 02, 2010 at 01:54:25PM -0600, David Young wrote:
> On Mon, Feb 01, 2010 at 10:09:37PM +0000, Bill Stafford wrote:
> > I also have a question about how the RadioTap design deals with information
> > that may not be available. I know that RadioTap works for many different
> > drivers, and I am wondering if all the drivers get full information about
> > the packets.
> 
> The problem of don't-know/don't-care flags has come up before.  It'd be
> nice to have a general solution.

I've been thinking about this.  Instead of adding 2**n-byte aligned
fields with don't-know/don't-care flags, what do people think about
using the presence bits in the header to indicate the presence of
1-bit-wide fields?

Dave

-- 
David Young             OJC Technologies
[email protected]      Urbana, IL * (217) 278-3933