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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 12:11:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 12:11:44 -0800
commitb5c78e04dd061b776978dad61dd85357081147b0 (patch)
tree2416b2dc61c452c3aeb2a32bcedf15e6257be638 /Documentation/ABI
parent06991c28f37ad68e5c03777f5c3b679b56e3dac1 (diff)
parent951348b377385475aa256c27e1c9e2564c9ec160 (diff)
downloadlinux-b5c78e04dd061b776978dad61dd85357081147b0.tar.gz
Merge tag 'staging-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree update from Greg Kroah-Hartman: "Here's the big staging tree merge for 3.9-rc1 Lots of cleanups and updates for drivers all through the staging tree. We are pretty much "code neutral" here, adding just about as many lines as we removed. All of these have been in linux-next for a while." * tag 'staging-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (804 commits) staging: comedi: vmk80xx: wait for URBs to complete staging: comedi: drivers: addi-data: hwdrv_apci3200.c: Add a missing semicolon staging: et131x: Update TODO list staging: et131x: Remove assignment of skb->dev staging: wlan-ng: hfa384x.h: fix for error reported by smatch staging/zache checkpatch ERROR: spaces prohibited around that staging/ozwpan: Mark read only parameters and structs as const staging/ozwpan: Remove empty and unused function oz_cdev_heartbeat staging/ozwpan: Mark local functions as static (fix sparse warnings) staging/ozwpan: Add missing header includes staging/usbip: Mark local functions as static (fix sparse warnings) staging/xgifb: Remove duplicated code in loops. staging/xgifb: Consolidate return paths staging/xgifb: Remove code without effect staging/xgifb: Remove unnecessary casts staging/xgifb: Consolidate if/else if with identical code branches staging: vt6656: replaced custom TRUE definition with true staging: vt6656: replaced custom FALSE definition with false staging: vt6656: replace custom BOOL definition with bool staging/rtl8187se: Mark functions as static to silence sparse ...
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+What: /sys/bus/iio/devices/iio:deviceX/in_gyro_matrix
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_matrix
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_matrix
+KernelVersion: 3.4.0
+Contact: linux-iio@vger.kernel.org
+Description:
+ This is mounting matrix for motion sensors. Mounting matrix
+ is a 3x3 unitary matrix. A typical mounting matrix would look like
+ [0, 1, 0; 1, 0, 0; 0, 0, -1]. Using this information, it would be
+ easy to tell the relative positions among sensors as well as their
+ positions relative to the board that holds these sensors. Identity matrix
+ [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and device are perfectly
+ aligned with each other. All axes are exactly the same.