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| -rw-r--r-- | Documentation/user/usb.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/user/usb.rst b/Documentation/user/usb.rst index bbcb045cee..ec219cfbe4 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 barebox:/ + +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 +CONFIG_USB_GADGET_AUTOSTART enabled. + +USB Gadget autostart Options +^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +``global.usbgadget.autostart`` + Boolean flag. If set to 1, usbgadget will be started automatically on boot and + enable USB OTG mode. (Default 0). +``global.usbgadget.acm`` + Boolean flag. If set to 1, CDC ACM function will be created. + See :ref:`command_usbgadget` -a. (Default 0). +``global.usbgadget.fastboot_function`` + Function description for fastboot. See :ref:`command_usbgadget` -A [desc]. |