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authorAlexander Shishkin <alexander.shishkin@linux.intel.com>2018-11-12 13:05:22 +0200
committerAlexander Shishkin <alexander.shishkin@linux.intel.com>2019-02-21 15:01:06 +0200
commit1b948134c00673c0dc902a72474df3261c4bbbcd (patch)
tree154504b5e7725d0d1fd6fa666c2f495ee6b18769
parentbfeffd155283772bbe78c6a05dec7c0128ee500c (diff)
intel_th: Update ABI documentation
Commit a753bfcfdb1f3 ("intel_th: Make the switch allocate its subdevices") changed the behavior so that the output port devices are created only for the ports reported by the hardware and their initial state is "unassigned" until a corresponding output port driver is loaded. Reflect this fact in the ABI documentation. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Reported-by: Ricardo Neri <ricardo.neri@intel.com>
-rw-r--r--Documentation/ABI/testing/sysfs-bus-intel_th-output-devices6
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-intel_th-output-devices b/Documentation/ABI/testing/sysfs-bus-intel_th-output-devices
index 4d48a9451866..d1f667104944 100644
--- a/Documentation/ABI/testing/sysfs-bus-intel_th-output-devices
+++ b/Documentation/ABI/testing/sysfs-bus-intel_th-output-devices
@@ -3,11 +3,13 @@ Date: June 2015
KernelVersion: 4.3
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Description: (RW) Writes of 1 or 0 enable or disable trace output to this
- output device. Reads return current status.
+ output device. Reads return current status. Requires that the
+ correstponding output port driver be loaded.
What: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/port
Date: June 2015
KernelVersion: 4.3
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Description: (RO) Port number, corresponding to this output device on the
- switch (GTH).
+ switch (GTH) or "unassigned" if the corresponding output
+ port driver is not loaded.