Added blackboard related files

recipes-core/elkpi-blackboard/elkpi-blackboard_git.bb

@@ -0,0 +1,33 @@
+SUMMARY = "Install Elk BlackBoard related files in the system"
+HOMEPAGE = "https://github.com/elk-audio/elk-examples"
+LICENSE = "GPLv3"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/GPL-3.0;md5=c79ff39f19dfec6d293b95dea7b07891"
+
+SRC_URI = "git://github.com/elk-audio/elk-examples;protocol=https;nobranch=1"
+
+SRCREV = "85271f84e0dcbb984ee7b73e6e103d16568366a4"
+
+S = "${WORKDIR}/git/blackboard/common-files"
+
+SENSEI_CONFIG_DIR = "${datadir}/sensei"
+FONTS_DIR = "${datadir}/fonts/ttf"
+ELK_UI_DIR = "${libdir}/python3.7/site-packages/elk_ui"
+
+do_install() {
+    install -d ${D}${SENSEI_CONFIG_DIR}
+    install -d ${D}${FONTS_DIR}
+    install -d ${D}${ELK_UI_DIR}
+
+    install -m 0644 sensei_config.json ${D}${SENSEI_CONFIG_DIR}/blackboard.json
+    install -m 0644 LiberationMono-Regular.ttf ${D}${FONTS_DIR}/
+    install -m 0644 elk_ui.py ${D}${ELK_UI_DIR}/
+}
+
+FILES_${PN} += "\
+    ${SENSEI_CONFIG_DIR} \
+    ${SENSEI_CONFIG_DIR}/* \
+    ${FONTS_DIR} \
+    ${FONTS_DIR}/* \
+    ${ELK_UI_DIR} \
+    ${ELK_UI_DIR}/* \
+"

recipes-core/elkpi-systemd-services/files/sensei.service

@@ -1,14 +1,18 @@
 [Unit]
 Description=sensei starting service
-After=sushi.service
-ConditionPathExists=/dev/rtdm/audio_rtdm
+After=load-drivers.service
+ConditionPathExists=/dev/rtdm/shiftreg_rtdm
 
 [Service]
 Type=simple
 RemainAfterExit=yes
 WorkingDirectory=/udata/
-ExecStart=/usr/bin/sensei -f # need to specify config file here
+Environment=LD_LIBRARY_PATH=/usr/xenomai/lib
+
+# You can use your custom sensei config file by editing the following line
+ExecStart=/usr/bin/sensei -f /usr/share/sensei/blackboard.json
+
 User=mind
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=multi-user.target