[Gumstix-users] twl4030_madc read errors

[Michael L. <mli...@us...>]

Have an Overo Fire FE running the following kernel built with Yocto:
Linux <hostname> 3.5.0 #1 PREEMPT Tue Dec 18 02:25:50 EST 2012 armv7l
GNU/Linux

For some reason the ADC channel 3 is returning a strange value:
# cat /sys/class/hwmon/hwmon0/device/in3_input
26

This is supposed to be the mV value read on pin 3 of ADC.  We have checked
the value of the Tobi headers for this channel and it is around 2000 mV. 
Any ideas on why we are reading such a low value?  

Let me know if you need any more information to help diagnose this issue. 

Thank You!
Michael



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