Disable usb gadget / usb ums

[mkleine]

Hello everyone,

this is my first post to this forum

Is there a way to disable the usb gadget feature (Tinkerboard S eMMC mounts as block device, when connected to a PC)?
I read that there might be a way by configuring U-Boot but I couldn't figure out how to access that.
I am running the image 20190821-tinker-board-linaro-stretch-alip-v2.0.11.img

I've been using the Beagle Bone Black before switching to the Tinker Board S and the Beagle Bone Black also uses usb gadget. It can be deactivated by
commenting out a few lines of code in one of the startup bash scripts.
Maybe it is possible on the Tinker Board S too?

I really need to disable this feature because of security requirements for my type of applications. It would be detrimental to the security in my environment if someone could access
the files and data on the device by simply connecting it to a PC.

Thank you so much in advance!

Greetings,
Mario

[igorpec]

1.
https://github.com/armbian/build
2. Build without UMS related patches
https://github.com/armbian/build/tree/ma...inkerboard

[leslie_yu]

Hello everyone,

this is my first post to this forum

Is there a way to disable the usb gadget feature (Tinkerboard S eMMC mounts as block device, when connected to a PC)?
I read that there might be a way by configuring U-Boot but I couldn't figure out how to access that.
I am running the image 20190821-tinker-board-linaro-stretch-alip-v2.0.11.img

I've been using the Beagle Bone Black before switching to the Tinker Board S and the Beagle Bone Black also uses usb gadget. It can be deactivated by
commenting out a few lines of code in one of the startup bash scripts.
Maybe it is possible on the Tinker Board S too?

I really need to disable this feature because of security requirements for my type of applications. It would be detrimental to the security in my environment if someone could access
the files and data on the device by simply connecting it to a PC.

Thank you so much in advance!

Greetings,
Mario

You can try this patch to Disable UMS directly. We are also working on a configuration for this.
https://github.com/TinkerBoard/debian_u-...af3b2f44e9