hmc6352: add driver for the HMC6352 compass
This driver will report the heading values in degrees to the sysfs
interface. The values returned are headings . e.g. 245.6
Alan: Cleanups requested now all folded in and a sysfs description to keep
Andrew happy. The sysfs description now resembles hwmon.
Signed-off-by: Kalhan Trisal <kalhan.trisal@intel.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352
new file mode 100644
index 0000000..feb2e4a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352
@@ -0,0 +1,21 @@
+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.
+
