USB-OTG: change way to start

Use udev rules instead of service.

Signed-off-by: Christophe Priouzeau <christophe.priouzeau@foss.st.com>
Change-Id: If77afaba6d763d34ec08cdc7f18f781e0fd30362

recipes-bsp/tools/usbotg-gadget-config.bb

@@ -1,41 +1,32 @@
 # Copyright (C) 2018, STMicroelectronics - All Rights Reserved
 # Released under the MIT license (see COPYING.MIT for the terms)
 
-DESCRIPTION = "The goal is to enable USB gadget configuration"
+SUMMARY = "The goal is to enable USB gadget configuration"
 
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
 
 PV = "1.0"
 
-SRC_URI = " file://usbotg-config.service \
-    file://stm32_usbotg_eth_config.sh \
+SRC_URI = " file://stm32_usbotg_eth_config.sh \
     file://53-usb-otg.network \
+    file://97-ustotg.rules \
     "
 
 S = "${WORKDIR}/git"
 
-inherit systemd update-rc.d
-
-SYSTEMD_PACKAGES += "${PN}"
-SYSTEMD_SERVICE_${PN} = "usbotg-config.service"
-SYSTEMD_AUTO_ENABLE_${PN} = "enable"
-
 do_install() {
     if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
-        install -d ${D}${systemd_unitdir}/system ${D}${base_sbindir} ${D}${systemd_unitdir}/network
-        install -m 0644 ${WORKDIR}/usbotg-config.service ${D}${systemd_unitdir}/system
-        install -m 0755 ${WORKDIR}/stm32_usbotg_eth_config.sh ${D}${base_sbindir}
+        install -d ${D}${systemd_unitdir}/network
         install -m 0644 ${WORKDIR}/53-usb-otg.network ${D}${systemd_unitdir}/network
     fi
 
-    install -d ${D}${sysconfdir}/init.d
-    install -m 0755 ${WORKDIR}/stm32_usbotg_eth_config.sh ${D}${sysconfdir}/init.d/
+    install -d ${D}${base_sbindir}
+    install -m 0755 ${WORKDIR}/stm32_usbotg_eth_config.sh ${D}${base_sbindir}
 
+    # install udev rule
+    install -D -p -m0644 ${WORKDIR}/97-ustotg.rules ${D}${sysconfdir}/udev/rules.d/97-ustotg.rules
 }
 
-INITSCRIPT_NAME = "stm32_usbotg_eth_config.sh"
-INITSCRIPT_PARAMS = "start 22 5 3 ."
-
 FILES:${PN} += "${systemd_unitdir}/network ${sysconfdir}/udev"
 

recipes-bsp/tools/usbotg-gadget-config/97-ustotg.rules

@@ -0,0 +1,2 @@
+ACTION=="add", SUBSYSTEM=="udc", RUN+="/sbin/stm32_usbotg_eth_config.sh restart"
+

recipes-bsp/tools/usbotg-gadget-config/stm32_usbotg_eth_config.sh

@@ -63,7 +63,7 @@ do_start() {
     mkdir -p "${d}/configs/${c}"
     mkdir -p "${d}/configs/${c}/strings/0x409"
     echo "Config 1: RNDIS" > "${d}/configs/${c}/strings/0x409/configuration"
-    echo 250 > "${d}/configs/${c}/MaxPower"
+    echo 0 > "${d}/configs/${c}/MaxPower"
     echo 0xC0 > "${d}/configs/${c}/bmAttributes" # self powered device
 
     # Windows extension to force RNDIS config
@@ -131,13 +131,20 @@ do_stop() {
 case $1 in
     start)
         echo "Start usb gadget"
-        do_start $2
+        do_start
         ;;
     stop)
         echo "Stop usb gadget"
         do_stop
         ;;
+    restart)
+        echo "Stop usb gadget"
+        do_stop
+        sleep 1
+        echo "Start usb gadget"
+        do_start
+        ;;
     *)
-        echo "Usage: $0 (stop | start)"
+        echo "Usage: $0 (stop | start | restart)"
         ;;
 esac

recipes-bsp/tools/usbotg-gadget-config/usbotg-config.service

@@ -1,13 +0,0 @@
-[Unit]
-Description=Enable USB Ethernet gadget
-After=systemd-remount-fs.service
-
-[Service]
-Type=oneshot
-RemainAfterExit=yes
-ExecStart=-/sbin/stm32_usbotg_eth_config.sh start
-ExecStop=/sbin/stm32_usbotg_eth_config.sh stop
-
-
-[Install]
-WantedBy=multi-user.target