nvidia@tegra-ubuntu:~$ xxd /proc/device-tree/pinctrl@3520000/pinmux/usb3-std-A-port1/status
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:~$ xxd /proc/device-tree/pinctrl@3520000/pinmux/usb3-std-A-port2/status
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:~$