[Avila] Voltage and Temperature Monitoring

[Joel Lindsay]

Hi,

I am trying to use the avila voltage and temp monitoring.  I have enabled
them in the snapgear dist but when I run them I get error of 

$ showvolt
Error: could not open /sys/class/hwmon/hwmon0/device/volt (2)

# showtemp
Error: could not open /sys/class/hwmon/hwmon0/device/temp_input (2)

Can anyone help.  I was trying to add these to the dev.txt file but I don't
know the major and minor numbers.  Any help getting these running is
appreciated.

JL