forgot to add the recipe

recipes-ros2/elphel-interfaces/elphel-ros2-interfaces_git.bb

+# Copied from https://github.com/bmwcarit/meta-ros.git:
+#     meta-ros/recipes-ros2/example-interfaces
+
+SUMMARY = "Contains message and service definitions"
+HOMEPAGE = "https://git.elphel.com/Elphel/ros2-interfaces.git"
+
+LICENSE = "GPLv3"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-3.0;md5=c79ff39f19dfec6d293b95dea7b07891"
+
+DEPENDS = " \
+    rosidl-default-generators \
+    rosidl-cmake \
+    rosidl-parser \
+    rosidl-generator-c \
+    rosidl-generator-cpp \
+    rosidl-generator-py \
+    rmw-implementation-cmake \
+    rmw \
+    rmw-fastrtps-cpp \
+    rosidl-typesupport-c \
+    rosidl-typesupport-cpp \
+    python-cmake-module \
+"
+
+#SRCREV = "2b5d7f2621e207b87d7d6cb9fd5ab4f7e92cad99"
+SRCREV = "d046f7552724a6b0ca730ce6c69ee25e8849d9c8"
+SRC_URI = "git://git.elphel.com/Elphel/ros2-interfaces.git;protocol=https"
+
+inherit ament pythonpath-insane
+
+S = "${WORKDIR}/git"
+
+ROS_BPN = "elphel_interfaces"