Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)

Pavel Machek
2005-06-25T14:47:57Z

Hi!

> > Yup, it's just doing port IO. Get a kernel debugger for windows like
> > softice and this will be trivial to RE.
> > READ_PORT_USHORT / WRITE_PORT_UCHAR / READ_PORT_UCHAR
>
> There are 3 ports involved. The 0xed "non-existant delay port" and a pair
> of ports that are through the Super-I/O / IDE. They are used in a
> index+value setup similar to reading/writing the AT keyboard
> > controller.

I think you got it... 2ports seem like enough for some kind of small
u-controller...

> >From what I remember, my conclusion was that these instructions were the
> ones to park the heads and then lock the IDE bus. It's a couple of months
> ago, but somewhere I have the simplified version of what it was doing...

Don't think so... parking heads will go through IDE layer...
Pavel

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