how to disable USB gadget mass storage, rndis and ncm in TX2 with SDK32.4.3
For reference, this is all from a sample of how to use the USB “gadget” API, and is located here on the Jetson:
/opt/nvidia/l4t-usb-device-mode
To examine the status as a service:
sudo systemctl status nv-l4t-usb-device-mode.service
(note that all of the USB device mode is consolidated into a single service)
To non-destructively disable this until rebooted:
sudo systemctl stop nv-l4t-usb-device-mode.service
To non-destructively disable this long term, even after reboots:
sudo systemctl stop nv-l4t-usb-device-mode.service
sudo systemctl disable nv-l4t-usb-device-mode.service
(this keeps the service off, but it can be later reenabled)
To reenable this:
sudo systemctl enable nv-l4t-usb-device-mode.service
Note that within the directory containing the content there is a configuration file which can be edited to change individual parts of the service (versus enabling or disabling everything):
nv-l4t-usb-device-mode-config.sh
EDIT: Note that this is provided by a package which has a lot of other functions, “nvidia-l4t-init”. Bad things would happen if you removed the whole package. If this updates I could see a possibility that this might re-enable the service, not sure.
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