[ltp] IBM HDAPS Someone interested? (Accelerometer)
linux-thinkpad@linux-thinkpad.org
linux-thinkpad@linux-thinkpad.org
Mon, 27 Jun 2005 11:36:27 +0100
Alejandro Bonilla wrote:
> Paul Sladen wrote:
>
>> On Thu, 23 Jun 2005, Lee Revell wrote:
>>
>>
>>> 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.
Note the winbond docs are incomplete for the W83627HF at least.
I needed to download the reference for the W83697HF to complete
the picture for when I was writing:
http://lxr.linux.no/source/drivers/char/watchdog/w83627hf_wdt.c
Give us a shout if you need any docs/programming help.
--
Pádraig Brady - http://www.pixelbeat.org
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