Add dkms support for bbswitch

Makefile

@@ -14,3 +14,9 @@ clean:
 load:
 	-/sbin/rmmod $(modname)
 	/sbin/insmod $(modname).ko
+
+install_dkms_module:
+	./scripts/install_dkms.sh install
+
+uninstall_dkms_module:
+	./scripts/install_dkms.sh uninstall

dkms/dkms.conf

@@ -0,0 +1,5 @@
+PACKAGE_NAME="bbswitch"
+PACKAGE_VERSION="REPLACE"
+BUILT_MODULE_NAME[0]="bbswitch"
+DEST_MODULE_LOCATION[0]="/kernel"
+AUTOINSTALL="yes"

scripts/install_dkms.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+uninstall_bbswitch_modules()
+{
+    local PKGVER="$(ls /usr/src/ | grep bbswitch | sed 's/^.*-//')"
+
+
+    # Warning: dmks say error if it doesn't know bbswitch module.
+    # This is the case for the first time, but it's not an error!
+    # TODO: Don't use the code below if PKGVER is empty (no return,
+    # no space...)
+
+
+    # Remove all version of bbswitch known by dkms
+    dkms remove -m bbswitch -v $PKGVER --all
+    depmod -a
+
+    # Remove all sources of bbswitch
+    # Keep rm after dkms remove because this last use dkms.conf
+    rm -fr /usr/src/bbswitch-$PKGVER
+}
+
+
+install_bbswitch_module()
+{
+    # Before install, remove previous versions
+    uninstall_bbswitch_modules
+
+    # Give a version to this bbswitch module
+    local GITVERSION=`git describe --tags`
+
+    sudo mkdir -p "/usr/src/bbswitch-$GITVERSION"
+
+    cp *.c "/usr/src/bbswitch-$GITVERSION" 
+    cp Makefile "/usr/src/bbswitch-$GITVERSION" 
+    cp ./dkms/dkms.conf "/usr/src/bbswitch-$GITVERSION" 
+
+    sed "s/REPLACE/$GITVERSION/" "/usr/src/bbswitch-$GITVERSION/dkms.conf"
+
+    # Compilation and installation
+    dkms add -m bbswitch -v $GITVERSION
+    dkms build -m bbswitch -v $GITVERSION
+    dkms install -m bbswitch -v $GITVERSION
+    depmod -a
+
+    #Now user can do : modprobe bbswitch
+}
+
+
+case $1 in
+	"install") install_bbswitch_module;;
+
+	"uninstall") uninstall_bbswitch_modules;;
+
+	*)  echo "Error: Don't call this script directly";;
+esac
+