summaryrefslogtreecommitdiffstats
path: root/Documentation/ABI/testing/sysfs-class-stm
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-stm')
-rw-r--r--Documentation/ABI/testing/sysfs-class-stm24
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-stm b/Documentation/ABI/testing/sysfs-class-stm
new file mode 100644
index 000000000..77ed3da0f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-stm
@@ -0,0 +1,24 @@
+What: /sys/class/stm/<stm>/masters
+Date: June 2015
+KernelVersion: 4.3
+Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+Description:
+ Shows first and last available to software master numbers on
+ this STM device.
+
+What: /sys/class/stm/<stm>/channels
+Date: June 2015
+KernelVersion: 4.3
+Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+Description:
+ Shows the number of channels per master on this STM device.
+
+What: /sys/class/stm/<stm>/hw_override
+Date: March 2016
+KernelVersion: 4.7
+Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+Description:
+ Reads as 0 if master numbers in the STP stream produced by
+ this stm device will match the master numbers assigned by
+ the software or 1 if the stm hardware overrides software
+ assigned masters.