TX1 USB OTG mass storage

I would like to configure my TX1 to behave as a mass storage USB device. I’ve seen these discussions for the TK1:

https://devtalk.nvidia.com/default/topic/897104/jetson-tk1/jetson-tk1-usb-otg-client-mode/
https://devtalk.nvidia.com/default/topic/869527/jetson-tk1/crash-during-usb-gadget-driver-unload/2/

but my TX1 doesn’t have the files /sys/devices/platform/tegra-otg/enable_host and /sys/devices/platform/tegra-otg/enable_device. Has anyone successfully configured the TX1 as a mass storage USB device?

Never heard of anyone pulling this off, seems like many people want the TX1/TK1 to work like some sort of camera in USB gadget mode. Another similar thread is here: https://devtalk.nvidia.com/default/topic/933970/ya-camera-question-using-the-usbotg-port-to-emulate-a-camera-/?offset=2