From mboxrd@z Thu Jan 1 00:00:00 1970 From: toby@smartgames.ca (Toby Thain) Date: Mon, 24 Apr 2006 17:51:19 -0400 Subject: [TUHS] [pups] Ancient Unixes In-Reply-To: <1145912427.9595.28.camel@linux.site> References: <20060424204843.2831915B@minnie.tuhs.org> <1145912427.9595.28.camel@linux.site> Message-ID: On 24-Apr-06, at 5:00 PM, Guy Sotomayor wrote: > On Mon, 2006-04-24 at 16:44 -0500, Norman Wilson wrote: >> Bill Cunningham: >> >> I am copying all I can from the unix archive and will burn it >> to cd >> because I know how precious they are. But what I was thinking >> was v5,6,7 for >> example. Take them and add USB support. Linux would be a good >> example from >> which to draw from. Because it's Posix. Much more could be adde >> to /dev. >> >> ======= >> >> Has anyone ever made a UNIBUS or Qbus USB card? > > The problem isn't so much the hardware, it's the software. A USB > stack > (OHCI/UHCI) isn't exactly small and I doubt you could create a driver > stack that would fit in a PDP-11's 16 bit address space (ie TCP/IP > is a > stretch in that it only works on systems with 22-bit addressing and > I'd > say that a USB stack is *at least* as complicated as a TCP/IP stack). No, it certainly is possible. I've used USB stacks on much smaller devices, such as Microchip PIC18. That is not a full-featured stack, but certainly enough to do quite a lot. TCP/IP doesn't have to be large either. See Adam Dunkel's uIP: http:// www.sics.se/~adam/uip/ --Toby > > -- > > TTFN - Guy > > _______________________________________________ > PUPS mailing list > PUPS at minnie.tuhs.org > https://minnie.tuhs.org/mailman/listinfo/pups