Add depmod configuration installation

Add installation of a depmod configuration file overriding the hid-huion
module location. Remove manual override instructions from README.md.

Author: spbnick

Makefile

@@ -5,7 +5,9 @@ KDIR := /lib/modules/$(shell uname -r)/build
 PWD := $(shell pwd)
 modules modules_install clean:
 	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) $@
-modules_depmod: modules_install
+conf_install:
+	install -D -m 0644 hid-huion.conf /etc/depmod.d/hid-huion.conf
+modules_depmod: modules_install conf_install
 	depmod -a
 udev_install:
 	install hid-rebind /sbin

README.md

@@ -29,15 +29,6 @@ installing appropriate version of "linux-headers" package.
 
 To build the driver run "make" in the driver's source directory.
 
-If you run Ubuntu or a derived distro, you might need to prepend "extra" to
-the directory search list in /etc/depmod/ubuntu.conf before installation. Put
-it right after the "search" command word and before any other directories, so
-the installed driver takes precedence over the stock driver in v3.11 and later
-kernels. For example, on Ubuntu 13.10 /etc/depmod/ubuntu.conf would have to
-become this:
-
-    search extra updates ubuntu built-in
-
 To install the driver and the associated rebinding script run "make install"
 as root in the source directory.
 

hid-huion.conf

@@ -0,0 +1,4 @@
+# Depmod(8) configuration for hid-huion driver
+#
+# Load hid-huion driver from the "extra" module subdirectory
+override hid-huion * extra