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authorKalhan Trisal <kalhan.trisal@intel.com>2010-08-09 17:21:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-09 20:45:10 -0700
commitcfa3b24c38b58cb6acabe6441b4668e530e957af (patch)
tree666af3dd6eb990d244ef19d16d099107da11b28d /Documentation
parent5f1209a1a4cf24798408fa0893258dcbefcf6be9 (diff)
downloadop-kernel-dev-cfa3b24c38b58cb6acabe6441b4668e530e957af.zip
op-kernel-dev-cfa3b24c38b58cb6acabe6441b4668e530e957af.tar.gz
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-i2c-devices-hm635221
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352
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@@ -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.
+
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