[ltp] The ThinkPad Button on A22m (and sound buttons)

[Ted Love]

I own a T20 w/ pre-inst Caldera.  I have the binary form of the kernel mod and
the utility.  I have tried to port it over to my RedHat 7.1 installation, but
have not had the time lately to get it to work.  If there are those that would
be interested in collaborating, please contact me off-list.
--Ted

On Wed, Dec 12, 2001 at 10:54:12AM -0500, Tod Harter (tharter@rhombus.net) wrote:
> On Tuesday 11 December 2001 18:06, you wrote:
> > The download does not exist. I emailed the author (he posted to this group
> > once), who works for IBM. He said he'd love to give me the executable
> > (there is, by the way, two parts, a user-mode daemon called tpsysd, and a
> > client (gtpbutton). The problem is that IBM won't (yet) release this
> > program source code, because IBM views the interface as confidential. The
> > author said he will try to get IBM to release an executable (with a licence
> > wrapper). I shall email him in one week for a follow-up.
> 
> Good Lord! A confidential interface to a freaking button! Thats beauracracy 
> for you. 
> 
> Its doubtfull that it could be reverse engineered without any working code to 
> go by. The only way I can think to do it would be to reverse engineer 
> whatever driver windows uses to talk to the thing. Given that its a button, 
> its probably a fairly simple interface. All it really has to do is generate 
> an interrupt. Doubtless its tied into some existing chip, we just need to 
> know which one, where the I/O ports are, etc. The usual gory details.
> 
> So, if there's anyone out there that has Windows on their Thinkpad (mine's 
> long since gone) and a debugger, and the knowledge to use it... I'd be happy 
> to take a look at the windows code, we just need to FIND it. 
> 
> >
> > Cameron Kerr
> >
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