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

From: Alejandro Bonilla
Date: Sat Jun 25 2005 - 14:18:27 EST


Vojtech Pavlik wrote:

On Sat, Jun 25, 2005 at 04:47:36PM +0200, Pavel Machek wrote:


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...



Quite possibly the ACPI EC. Most likely a side entrance into the onboard 8042.



Vojtech,

What is the onboads 8042?

.Alejandro
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