Date: Sun, 10 Feb 2008 00:34:30 +0100 From: "Julian H. Stacey" <jhs@berklix.org> To: Chuck Robey <chuckr@chuckr.org> Cc: FreeBSD-Hackers <freebsd-hackers@freebsd.org> Subject: Re: USB Graphic Tablets Message-ID: <200802092334.m19NYUax000451@fire.js.berklix.net> In-Reply-To: <47AE2628.3070500@chuckr.org> References: <47ADFD2C.80009@chuckr.org> <200802091951.m19JpJfj096492@fire.js.berklix.net> <47AE0BFA.5030007@chuckr.org> <200802092216.m19MGgte098739@fire.js.berklix.net> <47AE2628.3070500@chuckr.org>
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Chuck Robey wrote: > >>>> Well, my first question is, does there exist a tool for USB that let's you > >>>> view the raw return from the usb probing? I want to see what this device > >>>> is actually identifying itself as. Actual numeric vendor IDs and product > >>>> IDs are the sort of thing I'm after. Something a whole lot more detailed > >>>> that usbdevs, please. Even the dmesg listing (as I show above) hasn't got > >>>> the numbers and tails I need. > >>> Hi Chuck, > >>> On list sane-devel@lists.alioth.debian.org (A mostly Linux using > >>> crownd though not just, some BSD) They mostly seem to rec. some > >>> (free I assume) MS$ comparible .exe prog for snatching USB traffic > >>> to then analyse / develop for *IX drivers. I don't remember prog name, > >>> but http://lists.alioth.debian.org/mailman/listinfo/sane-devel > >>> Julian > >> Thanks much for the URL, I will definitely look it up. I'm a bit surprised > >> that the SANE folks, who I took to be scanner-oriented, should be > >> interested in graphic tablets. > > > > Err, they're not far as I know, but they often seem to want to grab > > byte streams on scanners to then analyse for Sane. I guess what > > one wants to later use the grabbed traffic for doesnt matter, so > > long as one has the traffic grabbed for analysis ? > > Well ... OK, I'm having just a bit of a hard time seeing how that would > help me in trying to get my graphic tablet working on FreeBSD for my dear > old gimp, Ah, sorry, forgot to say: Using a 2nd PC as traffic monitor. You'd issue probe from FreeBSD to USB device using whatever tools, & the (Gasp! Wash my mouth out with soap!) - MS.EXE prog running on a 2nd PC would trap a copy of traffic in each direction, synchronising the 2 as well I believe though never tried it. The 2nd monitoring (MS) PC uses 2 USB ports, one to copy FreeSBD PC to tablet device traffic, & the other port to copy tablet to FreeBSD traffic. ... & you have to make up a special USB cable, eg a male to female USB extender cable, with tapped copies of signal in each direction going to 2 extra USB connectors to 2 ports on 2nd monitor PC. Sane developers seem to do that a lot on new unknown USB scanners. > but I know darn well you're right more often than I am, so I > will give a good look at that list anyhow. Non tech flippancy: Chuckle, dreadful thought to be wise! .. BBC's Hitchkikers Guide To The Galaxy: To leader of bird people: "What do we call you ?" "Well, some call me the wise .. old .. bird" ponderously said by John Le Mesurier (Sergeant Wilson in BBC's 'Dad's Army') :-) -- Julian Stacey. BSD Unix Linux Net Consultant, Munich. http://berklix.com
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