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#!/bin/bash
cd /sys/kernel/config/usb_gadget
if [ ! -f "g1" ]; then
mkdir g1
cd g1
echo 0x1d6b > idVendor # Linux foundation
echo 0x0104 > idProduct # Multifunction composite gadget
mkdir -p strings/0x409
echo "Linux" > strings/0x409/manufacturer
echo "Etherned/ECM gadget" > strings/0x409/product
mkdir -p configs/c.1
echo 100 > configs/c.1/MaxPower
mkdir -p configs/c.1/strings/0x409
echo "ECM" > configs/c.1/strings/0x409/configuration
mkdir -p functions/ecm.usb0
cat /tmp/usb0_dev > functions/ecm.usb0/dev_addr # write device mac address
cat /tmp/usb0_host > functions/ecm.usb0/host_addr # write usb mac address
ln -s functions/ecm.usb0 configs/c.1
echo "$UDC" > UDC
rm /tmp/usb0_dev
rm /tmp/usb0_host
fi
exit 0
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