T113 Tina 5.0-V1.0 SDK如何配置USB虚拟串口 USB CDC ACM驱动

[zsn19931119]

图片是我在kernel的相关配置，编译打包后并为发现相关的设备节点：
开发板查看设备节点

哪位大佬能够提供一份完整的USB CDC ACM这个功能的教程啊，谢谢啦

[momoyu]

@zsn19931119
其他系列的配置，参考一下？

依赖配置项：
CONFIG_USB_ACM=y
CONFIG_USB_CONFIGFS_ACM=y
Device Drivers ‑‑‑>
[*] USB support ‑‑‑>
<*> USB Modem (CDC ACM) support
<*> USB Gadget Support ‑‑‑>
<*> USB functions configurable through configfs
[*]  Abstract Control Model (CDC ACM)

configfs 配置方法：
mount ‑t configfs none /sys/kernel/config
mkdir /sys/kernel/config/usb_gadget/g1
echo "0x1f3a" > /sys/kernel/config/usb_gadget/g1/idVendor
echo "0x0007" > /sys/kernel/config/usb_gadget/g1/idProduct
mkdir /sys/kernel/config/usb_gadget/g1/strings/0x409
mkdir /sys/kernel/config/usb_gadget/g1/functions/acm.usb0
mkdir /sys/kernel/config/usb_gadget/g1/configs/c.1
echo 0xc0 > /sys/kernel/config/usb_gadget/g1/configs/c.1/bmAttributes
echo 500 > /sys/kernel/config/usb_gadget/g1/configs/c.1/MaxPower
mkdir /sys/kernel/config/usb_gadget/g1/configs/c.1/strings/0x409
ln ‑s /sys/kernel/config/usb_gadget/g1/functions/acm.usb0/ /sys/kernel/config/usb_gadget/g1/configs/c.1/acm.usb0
ls /sys/class/udc/ | xargs echo > /sys/kernel/config/usb_gadget/g1/