| Where:		/sys/bus/i2c/devices/.../heading0_input | 
 | Date:		April 2010 | 
 | Kernel Version: 2.6.36? | 
 | Contact:	alan.cox@intel.com | 
 | Description:	Reports the current heading from the compass as a floating | 
 | 		point value in degrees. | 
 |  | 
 | Where:		/sys/bus/i2c/devices/.../power_state | 
 | Date:		April 2010 | 
 | Kernel Version: 2.6.36? | 
 | Contact:	alan.cox@intel.com | 
 | Description:	Sets the power state of the device. 0 sets the device into | 
 | 		sleep mode, 1 wakes it up. | 
 |  | 
 | Where:		/sys/bus/i2c/devices/.../calibration | 
 | Date:		April 2010 | 
 | Kernel Version: 2.6.36? | 
 | Contact:	alan.cox@intel.com | 
 | Description:	Sets the calibration on or off (1 = on, 0 = off). See the | 
 | 		chip data sheet. | 
 |  |