WhyCan Forum(哇酷开发者社区)

配置完adb后 调用脚本

# ./run_adb.sh
[   28.751931] file system registered
[   28.846671] configfs-gadget musb-hdrc.1.auto: failed to start g1: -19
echo: write error: No such device

usb配置如下：

脚本如下：
#! /bin/sh
mount -t configfs none /sys/kernel/config
mkdir /sys/kernel/config/usb_gadget/g1
echo "0x18d1" > /sys/kernel/config/usb_gadget/g1/idVendor
echo "0x0002" > /sys/kernel/config/usb_gadget/g1/idProduct
mkdir /sys/kernel/config/usb_gadget/g1/strings/0x409
echo "20080411" > /sys/kernel/config/usb_gadget/g1/strings/0x409/serialnumber
echo "Android" > /sys/kernel/config/usb_gadget/g1/strings/0x409/manufacturer
mkdir /sys/kernel/config/usb_gadget/g1/functions/ffs.adb
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/ffs.adb/ /sys/kernel/config/usb_gadget/g1/configs/c.1/ffs.adb
mkdir /dev/usb-ffs
mkdir /dev/usb-ffs/adb
mount -o uid=2000,gid=2000 -t functionfs adb /dev/usb-ffs/adb/
ls /sys/class/udc/ | xargs echo > /sys/kernel/config/usb_gadget/g1/UDC

报错再 ls /sys/class/udc/ | xargs echo > /sys/kernel/config/usb_gadget/g1/UDC 这行

4.14和5.4 的内核都是试过了，有知道原因的吗？