Documentation: Add documentation for USB serial console

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/user/usb.rst b/Documentation/user/usb.rst
index 8b700d3bbf..f67a2f13d4 100644
--- a/Documentation/user/usb.rst
+++ b/Documentation/user/usb.rst
@@ -88,3 +88,10 @@ the following:
 
 The ``dfu-util`` command automatically finds DFU-capable devices. If there are
 multiple devices found, you need to identify one with the ``-d``/``-p`` options.
+
+USB serial console
+^^^^^^^^^^^^^^^^^^
+
+barebox can provide a serial console over USB. This can be initialized with the
+:ref:`command_usbserial` command. Once the host is plugged in it should show a
+new serial device, on Linux for example ``/dev/ttyACM0``.