diff options
authorOleksij Rempel <>2017-05-06 16:02:32 +0200
committerSascha Hauer <>2017-05-08 13:55:16 +0200
commitb1c9f53acd586d7b611d2406018866d680081c62 (patch)
parente5f2191e7b6920e67dd45b34d9b1c86d04456ffa (diff)
Documentation: usbgadget: provide autostart notes
The usbgadget autostart functionality is already added. It's time to reflect it in the documentation. Signed-off-by: Oleksij Rempel <> Signed-off-by: Sascha Hauer <>
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/user/usb.rst b/Documentation/user/usb.rst
index bbcb045..ec219cf 100644
--- a/Documentation/user/usb.rst
+++ b/Documentation/user/usb.rst
@@ -216,3 +216,24 @@ mode. Once a specific mode has been selected it can't be changed later anymore.
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
+USB Gadget autostart Support
+Barebox can be configured to start usbgadget automatically by using global variables,
+instead of creating boot script. This can be useful if autostart policy should be
+chosen at boot time from other driver or script.
+To get usbgadget autostart support barebox has to be compiled with
+USB Gadget autostart Options
+ Boolean flag. If set to 1, usbgadget will be started automatically on boot and
+ enable USB OTG mode. (Default 0).
+ Boolean flag. If set to 1, CDC ACM function will be created.
+ See :ref:`command_usbgadget` -a. (Default 0).
+ Function description for fastboot. See :ref:`command_usbgadget` -A [desc].