2 files changed, 22 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-mpu6050 b/Documentation/ABI/testing/sysfs-bus-iio-mpu6050
new file mode 100644
index 000000000000..cb53737aacbf
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-mpu6050
@@ -0,0 +1,13 @@
+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.
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index b6fbe514a869..c8baaf53594a 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -227,3 +227,12 @@ Contact:	Lan Tianyu <tianyu.lan@intel.com>
 Description:
                 The /sys/bus/usb/devices/.../(hub interface)/portX
                 is usb port device's sysfs directory.
+
+What:           /sys/bus/usb/devices/.../(hub interface)/portX/connect_type
+Date:           January 2013
+Contact:        Lan Tianyu <tianyu.lan@intel.com>
+Description:
+                Some platforms provide usb port connect types through ACPI.
+                This attribute is to expose these information to user space.
+                The file will read "hotplug", "wired" and "not used" if the
+                information is available, and "unknown" otherwise.