added my Recipes
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@@ -0,0 +1,14 @@
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[Match]
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Name=usb0
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Type=gadget
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[Network]
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Address=192.168.7.1/24
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DHCPServer=yes
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KeepConfiguration=yes
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[DHCPServer]
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ServerAddress=192.168.7.1/24
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EmitTimezone=no
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EmitRouter=no
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@@ -0,0 +1,2 @@
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ACTION=="add", SUBSYSTEM=="udc", RUN+="/sbin/stm32_usbotg_eth_config.sh restart"
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@@ -0,0 +1,153 @@
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#!/bin/sh
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#add stm32_eth_config script to enable USB Ethernet & MSC gadget This script configures USB Gadget
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#configfs to use USB OTG as a USB Ethernet Gadget with Remote NDIS (RNDIS), well supported by Microsoft
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#Windows and Linux.
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configfs="/sys/kernel/config/usb_gadget"
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g=g1
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c=c.1
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d="${configfs}/${g}"
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func_eth=ncm.0
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func_ms=mass_storage.0
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VENDOR_ID="0x1d6b"
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PRODUCT_ID="0x0104"
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IP="192.168.7.2"
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NETMASK="255.255.255.0"
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#MAC address for ethernet-over-USB can be defined here
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MAC_HOST_CUST=""
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MAC_DEV_CUST=""
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get_mac_address_from_serial_number(){
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sha1sum /proc/device-tree/serial-number \
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| fold -1 \
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| sed -n '1{h;d};2{y/1235679abdef/000444888ccc/;H;d};13{g;s/\n//g;p;q};s/^/:/;N;H;d'
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}
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do_start() {
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if [ ! -d ${configfs} ]; then
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modprobe libcomposite
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if [ ! -d ${configfs} ]; then
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exit 1
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fi
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fi
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if [ -d ${d} ]; then
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exit 0
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fi
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udc=$(ls -1 /sys/class/udc/)
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if [ -z $udc ]; then
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echo "No UDC driver registered"
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exit 1
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fi
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mkdir "${d}"
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echo ${VENDOR_ID} > "${d}/idVendor"
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echo ${PRODUCT_ID} > "${d}/idProduct"
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echo 0x0200 > "${d}/bcdUSB"
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# Windows extension to use IAD (Interface Association Descriptor)
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# https://learn.microsoft.com/en-us/windows-hardware/drivers/usbcon/usb-interface-association-descriptor
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echo "0xEF" > "${d}/bDeviceClass"
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echo "0x02" > "${d}/bDeviceSubClass"
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echo "0x01" > "${d}/bDeviceProtocol"
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echo "0x0100" > "${d}/bcdDevice"
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mkdir -p "${d}/strings/0x409"
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tr -d '\0' < /proc/device-tree/serial-number > "${d}/strings/0x409/serialnumber"
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echo "STMicroelectronics" > "${d}/strings/0x409/manufacturer"
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echo "STM32MP1" > "${d}/strings/0x409/product"
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# Config
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mkdir -p "${d}/configs/${c}"
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mkdir -p "${d}/configs/${c}/strings/0x409"
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echo "Config 1: NCM" > "${d}/configs/${c}/strings/0x409/configuration"
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echo 0 > "${d}/configs/${c}/MaxPower"
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echo 0xC0 > "${d}/configs/${c}/bmAttributes" # self powered device
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# Enable use of OS descriptor (for windows to bind drivers like NCM, RNDIS...
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# without additional .inf file)
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mkdir -p "${d}/os_desc"
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echo "1" > "${d}/os_desc/use"
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echo "0xbc" > "${d}/os_desc/b_vendor_code"
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echo "MSFT100" > "${d}/os_desc/qw_sign"
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# Select windows UsbNcm Host driver
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mkdir -p "${d}/functions/${func_eth}"
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mkdir -p "${d}/functions/${func_eth}/os_desc/interface.ncm"
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echo "WINNCM" > "${d}/functions/${func_eth}/os_desc/interface.ncm/compatible_id"
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if [ "$MAC_HOST_CUST" != "" ]; then
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echo $MAC_HOST_CUST > "${d}/functions/${func_eth}/host_addr"
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else
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mac_host=$(get_mac_address_from_serial_number)
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echo $mac_host > "${d}/functions/${func_eth}/host_addr"
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fi
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if [ "$MAC_DEV_CUST" != "" ]; then
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echo $MAC_DEV_CUST > "${d}/functions/${func_eth}/dev_addr"
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fi
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# Set up the rndis device only first
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ln -s "${d}/functions/${func_eth}" "${d}/configs/${c}"
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ln -s "${d}/configs/${c}" "${d}/os_desc"
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echo "${udc}" > "${d}/UDC"
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sleep 0.2
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interfacename=$(cat ${d}/functions/${func_eth}/ifname 2> /dev/null)
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if [ -z "${interfacename}" ];
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then
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interfacename=usb0
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fi
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# ifconfig ${interfacename} $IP netmask $NETMASK
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ifconfig ${interfacename} up
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}
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do_stop() {
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interfacename=$(cat ${d}/functions/${func_eth}/ifname 2> /dev/null)
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if [ -z "${interfacename}" ];
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then
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echo "Nothing to do"
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return
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fi
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ifconfig ${interfacename} down
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sleep 0.2
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echo "" > "${d}/UDC"
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rm -f "${d}/os_desc/${c}"
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[ -d "${d}/configs/${c}/${func_eth}" ] &&rm -f "${d}/configs/${c}/${func_eth}"
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[ -d "${d}/strings/0x409/" ] && rmdir "${d}/strings/0x409/"
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[ -d "${d}/configs/${c}/strings/0x409" ] && rmdir "${d}/configs/${c}/strings/0x409"
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[ -d "${d}/configs/${c}" ] && rmdir "${d}/configs/${c}"
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[ -d "${d}/functions/${func_eth}" ] && rmdir "${d}/functions/${func_eth}"
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[ -d "${d}" ] && rmdir "${d}"
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}
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case $1 in
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start)
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echo "Start usb gadget"
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do_start
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;;
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stop)
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echo "Stop usb gadget"
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do_stop
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;;
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restart)
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echo "Stop usb gadget"
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do_stop
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sleep 1
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echo "Start usb gadget"
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do_start
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;;
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*)
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echo "Usage: $0 (stop | start | restart)"
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;;
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esac
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