Merge pull request #1999 from stolen/usbgadget-fix

usbgadget: properly restore host mode on boot

projects/ROCKNIX/packages/rocknix/sources/scripts/usbgadget

@@ -298,7 +298,7 @@ cleanup_usb_mtp() {
 
 set_role() {
 	for sw in $(ls -1 /sys/class/udc/${UDC_NAME}/device/usb_role/*/role 2>/dev/null); do
-		if [ "$verbose" -gt "0" ]; then echo "swithing usb role to device: $sw"; fi
+		if [ "$verbose" -gt "0" ]; then echo "swithing usb role to $1: $sw"; fi
 		echo $1 > $sw
 	done
 }
@@ -328,8 +328,13 @@ usb_start() {
 		usb_stop
 	fi
 
-	# If there is a role switch, switch to device mode
-	set_role device
+	if [ "${USB_MODE}" == "disabled" ]; then
+		usb_disable
+		set_role host
+		return
+	else
+		set_role device
+	fi
 
 	if [ "${USB_MODE}" = mtp ] ; then
 		if [ ! -d "${g_mtp}" ]; then
@@ -382,6 +387,17 @@ usb_stop() {
 	) >/dev/null 2>&1
 }
 
+set_usb_mode() {
+	case "${1}" in
+		cdc|mtp)
+			usb_start "${1}"
+			;;
+		*)
+			usb_stop
+			;;
+	esac
+}
+
 case "$1" in
 	prepare)
 		prepare_usb_network
@@ -415,10 +431,9 @@ case "$1" in
 		echo "disabled network file_transfer"
 		;;
 	"--start")
-		set_role host
 		prepare_usb_network
 		prepare_usb_mtp
-		usb_start
+		set_usb_mode "${USB_MODE}"
 		;;
 	"")
 		case ${CURRENT_MODE} in