[PATCH 1/2] Documentation: iio-trig-sysfs: Document add_trigger attribute

From: Cristina Opriceana
Date: Wed Aug 12 2015 - 07:29:52 EST

This patch adds the ABI documentation for the add_trigger
attribute, which is provided by the iio-trig-sysfs stand-alone driver.

Signed-off-by: Cristina Opriceana <cristina.opriceana@xxxxxxxxx>
Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs b/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
index 5235e6c..887aa92 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
+++ b/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
@@ -9,3 +9,14 @@ Description:
automated testing or in situations, where other trigger methods
are not applicable. For example no RTC or spare GPIOs.
X is the IIO index of the trigger.
+What: /sys/bus/iio/devices/iio_sysfs_trigger/add_trigger
+KernelVersion: 2.6.39
+Contact: linux-iio@xxxxxxxxxxxxxxx
+ This attribute is provided by the iio-trig-sysfs stand-alone
+ driver and it is used to activate the creation of a new trigger.
+ In order to achieve this, one should write a positive integer
+ into the associated file, which will serve as the id of the
+ trigger. If the trigger with the specified id is already present
+ in the system, an invalid argument message will be returned.

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