Subject: Re: Implementing interface media type autodetection?
To: John Hawkinson <>
From: Chris G Demetriou <>
List: tech-net
Date: 06/09/1996 14:17:07
> > I agrree with Chris that this should go into struct ifnet.
> > if_media is fine with me.
> Rah. Some piece of concensus. Let us also assume consensus is
> to extend ifru_flags to an int as long as we're changing things.

Short to int, you meant.  And let us not forget the binary
compatibility issue.  8-)

I've put this and fixing the current SIOC.IFMTU mess on my "in-pocket"
to-do list, on the post-1.2 side.  8-)

> > What do you do about media with full-duplex support?  (Note
> > that you can do full-duplex on FDDI too if you use the DEC
> > FDDI adapters).
> > 
> > Should that be a IFF_LINKx option?  (I hope not).  
> I really think it should. After all, you can do full-duplex FDDI on
> any sort of FDDI (mm, sm, stp), right? It certainly seems that
> duplicity should be outside of media type (otherwise we double the
> FDDI media types to 6 from 3...), whether as an IFF_LINK? or as
> IFF_FDUPLEX (the latter seems not worth it at this point, given the
> paucity of drivers which have this option).

actually, yeah, i think i'd buy an IFF_FDUPLEX over an SIOC.IFDUPLEX.