How to access I2C in XPe ?

[Esha]

How to access the I2C devices on XPe ? In the hardware I have, the touch
screen controller connected in this fashion....


Windows OS --->LPC--->SMBus--->I2C---Touchscreen controller

Should I have to write a PCI driver ? Which I tried but the driver did
not report any PCI configuration. I got a NULL pointer for
stack->Parameters.StartDevice.AllocatedResources in the StartDevice().

What should I do ? Am i in the right direction of accessing the I2C device ?

-Esha

 

[Sean Liming \(MVP\)]

Is this custom hardware, or hardware from a manufacturer? If the later, you
should ask them for their device driver.

--
Regards,

Sean Liming
www.sjjmicro.com / www.seanliming.com
Book Author - XP Embedded Advanced, XP Embedded Supplemental Toolkit

 

[Ralph A. Schmid, dk5ras]

What should I do ? Am i in the right direction of accessing the I2C device ?

Did you try using the normal XP driver?


-ras

--

Ralph A. Schmid

http://www.dk5ras.de/ http://www.db0fue.de/
http://www.bclog.de/

 

[Esha]

This is a custom hardware on Intel's Atom processor. The touch screen is
from Texas Instruments, they have drivers only on WinCE and not on XPe.

 

[Esha]

Which one is this 'normal' XP driver ? I dont think XP has any
touchscreen driver (as specially over I2C).
-Esha

 

[Esha]

Which is this 'normal' XP driver ?
-Esha

Did you try using the normal XP driver?


-ras