dahdi.init: allow specifying the module(s) to download.

At the 'stop' command, the dahdi init.d service unloads dahdi
(and any module it depends in).

With this change, the user will be able to specify the modules to
unload, by setting DAHDI_UNLOAD_MODULES in init.conf. This allows:

* Disabling module unloading altogether
* Allowing the user to unload other modules as well, e.g. the 'echo'
  module of OSLEC, if you build it as part of DAHDI.

Note that unless you explicitly set DAHDI_UNLOAD_MODULES, the script
behaves exatly as before.


git-svn-id: http://svn.asterisk.org/svn/dahdi/tools/trunk@7997 a0bf4364-ded3-4de4-8d8a-66a801d63aff

2 files changed, 17 insertions, 2 deletions

diff --git a/dahdi.init b/dahdi.init
index cbc9dc7..91ae44e 100755
--- a/dahdi.init
+++ b/dahdi.init
@@ -37,6 +37,10 @@ XPP_SYNC=auto
 # device nodes after the modules have loaded and before running dahdi_cfg.
 DAHDI_DEV_TIMEOUT=20
 
+# A list of modules to unload when stopping.
+# All of their dependencies will be unloaded as well.
+DAHDI_UNLOAD_MODULES="dahdi"
+
 #
 # Determine which kind of configuration we're using
 #
@@ -99,6 +103,12 @@ unload_module() {
 	rmmod $module
 }
 
+unload_modules() {
+	for module in $DAHDI_UNLOAD_MODULES; do
+		unload_module $module
+	done
+}
+
 # In (xpp) hotplug mode, the init script is also executed from the
 # hotplug hook. In that case it should not attempt to loade modules.
 #
@@ -275,7 +285,7 @@ case "$1" in
 	# Unload drivers
 	#shutdown_dynamic # FIXME: needs test from someone with dynamic spans
 	echo -n "Unloading DAHDI hardware modules: "
-	if unload_module dahdi; then
+	if unload_modules; then
 		echo "done"
 	else
 		echo "error"
@@ -285,7 +295,7 @@ case "$1" in
 	fi
 	;;
   unload)
-	unload_module dahdi
+	unload_modules
 	;;
   restart|force-reload)
 	$0 stop
diff --git a/init.conf.sample b/init.conf.sample
index 9fb6393..58edec5 100644
--- a/init.conf.sample
+++ b/init.conf.sample
@@ -8,6 +8,11 @@
 # device nodes after the modules have loaded and before running dahdi_cfg. 
 #DAHDI_DEV_TIMEOUT=40
 
+# A list of modules to unload when stopping.
+# All of their dependencies will be unloaded as well.
+#DAHDI_UNLOAD_MODULES=""		# Disable module unloading
+#DAHDI_UNLOAD_MODULES="dahdi echo"	# If you use OSLEC
+
 # Override settings for xpp_fxloader
 #XPP_FIRMWARE_DIR=/usr/share/dahdi
 #XPP_HOTPLUG_DISABLED=yes