Word of warning all!!!
I have been playing with the temperature sensor on the Pi (I intend to graph the temperature of the device)
After a few hours of running CPU mining in a case the temperature slowly raised until it let the blue smoke out.
My other PI that is not in a case has been CPU mining for months now and keeps a steady temperature around 40'c so I blame the poor ventilation of the cheap plastic case.
Neil
Word of
advice to all ... CPU mining has been completely removed from the cgminer 3.0.0 code - you can no longer even compile it in.
CPU mining is pointless ... ... ... and I hear destructive also

Edit: I'm curious to know how to get lm-sensors working.
I installed lm-sensors and i2c-tools
( yes I did
https://bugzilla.redhat.com/attachment.cgi?id=573101&action=diff )
i2c seems to not find any devices so I guess there's some extra device info required for whatever is in the rpi