On Fri, Mar 24, 2023 at 02:16:08PM +0800, Hao Zhang wrote:

+Sysfs files and directories
+---------------------------
+
+Root: ``/sys/bus/coresight/devices/dummy<N>``
+
+----
+
+:File:            ``enable_source`` (RW)
+:Notes:
+    - > 0 : enable the datasets of dummy source.
+
+    - = 0 : disable the datasets of dummy source.
+
+:Syntax:
+    ``echo 1 > enable_source``
+
+----
+
+:File:            ``enable_sink`` (RW)
+:Notes:
+    - > 0 : enable the datasets of dummy sink.
+
+    - = 0 : disable the datasets of dummy sink.
+
+:Syntax:
+    ``echo 1 > enable_sink``

Is enable_{source,sink} integer-valued or bit (0/1)? In other words, is
it OK to `echo 2` to both sysfs files?

+
+----
+
+Config details
+---------------------------
+
+There are two types of nodes, dummy sink and dummy source. The nodes
+should be observed at the coresight path
+"/sys/bus/coresight/devices".

For consistency, inline this sysfs also (thus
``/sys/bus/coresight/devices``.

+e.g.

e.g.:: (make the shell snippet below code block)

+/sys/bus/coresight/devices # ls -l | grep dummy

IMO I prefer `PS1=\$` (that is, omit the directory). Alternatively,
you can write `ls -l /sys/bus/coresight/devices | grep dummy` (specify
the directory to `ls`).

Thanks.

-- 
An old man doll... just what I always wanted! - Clara