mcp251xfd: add sample dev-coredump udev rule

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

GNUmakefile.am

@@ -93,7 +93,9 @@ EXTRA_DIST = \
 	README.md \
 	autogen.sh \
 	can-j1939-kickstart.md \
-	can-j1939.md
+	can-j1939.md \
+	mcp251xfd/99-devcoredump.rules \
+	mcp251xfd/devcoredump
 
 MAINTAINERCLEANFILES = \
 	configure \

mcp251xfd/99-devcoredump.rules

@@ -0,0 +1 @@
+ACTION=="add", SUBSYSTEM=="devcoredump", RUN+="/usr/sbin/devcoredump"

mcp251xfd/devcoredump

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+
+timestamp=$(date +%+4Y%m%d-%H%M%S)
+filename=/var/log/devcoredump-${timestamp}.dump
+
+cat /sys/${DEVPATH}/data > ${filename}
+echo 1 > /sys/${DEVPATH}/data
+
+echo "devcoredump ${DEVPATH}" | logger