doc: coninfo man-page
Provide a man-page for the coninfo command.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/doc/usage/cmd/coninfo.rst b/doc/usage/cmd/coninfo.rst
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+.. SPDX-License-Identifier: GPL-2.0+:
+
+coninfo command
+===============
+
+Synopsis
+--------
+
+::
+
+ coninfo
+
+Description
+-----------
+
+The coninfo command provides a list of available console input and output
+devices and their assignment as stdin, stdout, stderr console devices.
+
+If CONFIG_SYS_CONSOLE_IS_IN_ENV=y, the assignment is controlled by the
+environment variables stdin, stdout, stderr which contain a comma separated
+list of device names.
+
+Example
+--------
+
+.. code-block:: console
+
+ => coninfo
+ List of available devices
+ |-- pl011@9000000 (IO)
+ | |-- stdin
+ | |-- stdout
+ | |-- stderr
+ |-- serial (IO)
+ |-- usbkbd (I)
+ => setenv stdin pl011@9000000,usbkbd
+ => coninfo
+ List of available devices
+ |-- pl011@9000000 (IO)
+ | |-- stdin
+ | |-- stdout
+ | |-- stderr
+ |-- serial (IO)
+ |-- usbkbd (I)
+ | |-- stdin
+
+Configuration
+-------------
+
+The coninfo command is only available if CONFIG_CMD_CONSOLE=y.
+
+Return value
+------------
+
+The return value $? is always 0 (true).
diff --git a/doc/usage/index.rst b/doc/usage/index.rst
index 729541b..cdf7109 100644
--- a/doc/usage/index.rst
+++ b/doc/usage/index.rst
@@ -39,6 +39,7 @@
cmd/cbsysinfo
cmd/cls
cmd/cmp
+ cmd/coninfo
cmd/conitrace
cmd/cyclic
cmd/dm