Accessing the Digital IO pins on a VIA EPIA-PD motherboard -
rsmith at xs4all.nl
Sat Sep 10 06:52:01 PDT 2005
On Sat, Sep 10, 2005 at 09:13:20PM +0800, Paul Hamilton wrote:
> Ok, so it doesn't look like anyone knows anything about how to access the
> DIO pins on this MB.
> Next question, How does one go about analysing the hardware to find out what
> the io and interrupt addresses might be?
Looking at page 5 of the manual for this mobo
looks like there is a VT1211 super I/O chip connected to the VT8235
The GPI/O is nowhere to be to been seen on this drawing, but the webpage
for the VT1211 (http://www.via.com.tw/en/products/peripherals/super-io/)
lists "56 General Purpose I/O Pins" My guess would be that that's what
you're looking for. You'd have to talk to VIA how the 8 pins on the mobo
are connected to the VT1211.
VIA has released an IrDA driver for the VT1211, but it is Linux-only and
You could write VIA and ask them to release enough documentation to
allow a driver for the digital I/O pins to be written.
R.F.Smith (http://www.xs4all.nl/~rsmith/) Please send e-mail as plain text.
public key: http://www.xs4all.nl/~rsmith/pubkey.txt
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