X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=Documentation%2FABI%2Ftesting%2Fsysfs-platform_profile;h=baf1d125f9f83a513b8b58cc97833450a8e88fa7;hp=dae9c89419053b56b9e115afa16e8c23e246e864;hb=32b47072f319bb65e9afad59e78153d83496f1f5;hpb=fc2c8d0af05af4c380824e40ff99ede398913ae5

diff --git a/Documentation/ABI/testing/sysfs-platform_profile b/Documentation/ABI/testing/sysfs-platform_profile
index dae9c8941905..baf1d125f9f8 100644
--- a/Documentation/ABI/testing/sysfs-platform_profile
+++ b/Documentation/ABI/testing/sysfs-platform_profile
@@ -26,3 +26,10 @@ Contact:	Hans de Goede <hdegoede@redhat.com>
 Description:	Reading this file gives the current selected profile for this
 		device. Writing this file with one of the strings from
 		platform_profile_choices changes the profile to the new value.
+
+		This file can be monitored for changes by polling for POLLPRI,
+		POLLPRI will be signalled on any changes, independent of those
+		changes coming from a userspace write; or coming from another
+		source such as e.g. a hotkey triggered profile change handled
+		either directly by the embedded-controller or fully handled
+		inside the kernel.