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linux-imx/Documentation/ABI/testing/sysfs-bus-intel_th-output-devices
Alexander Shishkin 1b948134c0 intel_th: Update ABI documentation 
Commit a753bfcfdb ("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>
2019-02-21 15:01:06 +02:00

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What: /sys/bus/intel_th/devices/<intel_th_id>-/active 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. Requires that the correstponding output port driver be loaded.

What: /sys/bus/intel_th/devices/<intel_th_id>-msc/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) or "unassigned" if the corresponding output port driver is not loaded.