Date: Sat, 10 Sep 2005 23:28:08 +0800 From: "Paul Hamilton" <paulh@bdug.org.au> To: "'Roland Smith'" <rsmith@xs4all.nl> Cc: freebsd-questions@freebsd.org Subject: RE: Accessing the Digital IO pins on a VIA EPIA-PD motherboard - Second question Message-ID: <061801c5b61c$3f4a7170$6600a8c0@w2k2> In-Reply-To: <20050910135145.GA89091@slackbox.xs4all.nl>
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Hi Roland, Thanks for the VIA Forum tip. I will see what they have to say. Cheers, Paul Hamilton > -----Original Message----- > From: Roland Smith [mailto:rsmith@xs4all.nl] > Sent: Saturday, 10 September 2005 9:52 PM > To: Paul Hamilton > Cc: freebsd-questions@freebsd.org > Subject: Re: Accessing the Digital IO pins on a VIA EPIA-PD > motherboard - Second question > > > 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 > (http://www.viaembedded.com/product/Download.jsp?motherboardId =241), it looks like there is a VT1211 super I/O chip connected to the VT8235 southbridge. 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 binary-only. You could write VIA and ask them to release enough documentation to allow a driver for the digital I/O pins to be written. Good luck. Roland -- 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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