From 3dfe622b850987a4b39919095ec40bdbf5ab6d59 Mon Sep 17 00:00:00 2001
From: Parker Reed <parker.l.reed@gmail.com>
Date: Mon, 25 Nov 2019 18:00:50 -0500
Subject: [PATCH] Add DKMS support

---
 Kbuild    |  3 +++
 Makefile  |  9 +++------
 README.md | 27 ++++++++++++++++++++++++++-
 dkms.conf |  8 ++++++++
 4 files changed, 40 insertions(+), 7 deletions(-)
 create mode 100644 Kbuild
 create mode 100644 dkms.conf

diff --git a/Kbuild b/Kbuild
new file mode 100644
index 0000000..6ea23cc
--- /dev/null
+++ b/Kbuild
@@ -0,0 +1,3 @@
+obj-m := hid-logitech-new.o
+hid-logitech-new-y := hid-lg.o hid-lgff.o hid-lg2ff.o hid-lg3ff.o hid-lg4ff.o
+ccflags-y := -Idrivers/hid
diff --git a/Makefile b/Makefile
index 80c659b..c93d77b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,3 @@
-ifneq ($(KERNELRELEASE),)
-obj-m := hid-logitech-new.o
-hid-logitech-new-y := hid-lg.o hid-lgff.o hid-lg2ff.o hid-lg3ff.o hid-lg4ff.o
-ccflags-y := -Idrivers/hid
-else
 KDIR ?= /lib/modules/`uname -r`/build
 
 default:
@@ -21,4 +16,6 @@ unload:
 	rmmod hid-logitech-new
 	modprobe hid-logitech
 
-endif
+clean:
+	$(MAKE) -C $(KDIR) M=$$PWD clean
+
diff --git a/README.md b/README.md
index c28cbcf..34ee6b5 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,29 @@ This module adds the following features:
 
 ## Build and install
 
+The module can be installed with DKMS or manually. Follow just one of the
+following procedures.
+
+If you want to use DKMS but the module was previously installed with the manual
+method delete the module by hand:
+
+`$ sudo rm /lib/modules/$(uname -r)/extra/hid-logitech-new.ko`
+
+### DKMS
+
+This installs the module to the system `src` directory and allows the module to
+be rebuilt any time the kernel updates.
+
+From your package manager of choice, install the package providing the `dkms` command.
+
+Download the project to `/usr/src/new-lg4ff`.
+
+Run the command:
+
+`$ sudo dkms install /usr/src/new-lg4ff`
+
+### Manual method
+
 ```
 $ make
 $ sudo make install
@@ -39,7 +62,9 @@ Unload the module (restoring the in-kernel module):
 
 `$ sudo make unload`
 
-Check that the driver is loaded:
+### Check that the driver is loaded
+
+Run:
 
 `sudo dmesg`
 
diff --git a/dkms.conf b/dkms.conf
new file mode 100644
index 0000000..9fae752
--- /dev/null
+++ b/dkms.conf
@@ -0,0 +1,8 @@
+PACKAGE_NAME="new-lg4ff"
+PACKAGE_VERSION="0.1"
+MAKE[0]="make"
+CLEAN="make clean"
+BUILT_MODULE_NAME[0]="hid-logitech-new"
+DEST_MODULE_NAME[0]="hid-logitech"
+DEST_MODULE_LOCATION[0]="/kernel/drivers/hid"
+AUTOINSTALL="yes"