Hi @_zyh
欢迎访问我们的开发者论坛！已经看到您的问题了，我转给相关的同事看一下。
这个默认应该就是开启的，你可以用USB cable连接刷机口到host PC，PC 上可以看到设备的。
nvidia@localhost:~$ lsusb
Bus 002 Device 002: ID 0bda:0420 Realtek Semiconductor Corp. 4-Port USB 3.0 Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0955:7020 NVIDIA Corp. L4T (Linux for Tegra) running on Tegra
Bus 001 Device 003: ID 0bda:5420 Realtek Semiconductor Corp. 4-Port USB 2.0 Hub
Bus 001 Device 002: ID 13d3:3549 IMC Networks Bluetooth Radio
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
nvidia@localhost:~$ ls /dev/sda
/dev/sda
nvidia@localhost:~$ sudo mount /dev/sda /media/
[sudo] password for nvidia:
mount: /media: WARNING: device write-protected, mounted read-only.
nvidia@localhost:~$ ll /media/
total 46
drwxr-xr-x 3 root root 16384 Dec 31 19:00 ./
drwxr-xr-x 19 root root 4096 Jul 16 2024 …/
-rwxr-xr-x 1 root root 1104 Jan 1 2098 INDEX.txt*
-rwxr-xr-x 1 root root 4078 Jan 1 2098 l4t-serial.inf*
-rwxr-xr-x 1 root root 10291 Jan 1 2098 README-usb-dev-mode.txt*
-rwxr-xr-x 1 root root 3590 Jan 1 2098 README-vnc.txt*
-rwxr-xr-x 1 root root 1940 Jan 1 2098 README-wifi.txt*
drwxr-xr-x 3 root root 2048 Jul 19 2024 version/
br
Chenjian
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