Add basic DKMS support

Add dkms.conf. Adjust Makefile to support DKMS build. Handle
DKMS-installed module location in hid-rebind.

Makefile

@@ -1,7 +1,6 @@
-ifneq ($(KERNELRELEASE),)
 obj-m := hid-kye.o hid-uclogic.o hid-polostar.o
-else
-KDIR := /lib/modules/$(shell uname -r)/build
+KVERSION := $(shell uname -r)
+KDIR := /lib/modules/$(KVERSION)/build
 PWD := $(shell pwd)
 UDEV_RULES := /lib/udev/rules.d/90-hid-rebind.rules
 DEPMOD_CONF := /etc/depmod.d/digimend.conf
@@ -21,4 +20,3 @@ uninstall:
 		/lib/modules/*/extra/hid-uclogic.ko
 	udevadm control --reload
 	depmod -a
-endif

dkms.conf

@@ -0,0 +1,10 @@
+PACKAGE_NAME="digimend"
+PACKAGE_VERSION="6"
+AUTOINSTALL="yes"
+MAKE[0]="make KVERSION=$kernelver"
+BUILT_MODULE_NAME[0]="hid-kye"
+BUILT_MODULE_NAME[1]="hid-uclogic"
+BUILT_MODULE_NAME[2]="hid-polostar"
+DEST_MODULE_LOCATION[0]="/extra"
+DEST_MODULE_LOCATION[1]="/extra"
+DEST_MODULE_LOCATION[2]="/extra"

hid-rebind

@@ -51,11 +51,12 @@ write_ignore_enodev() {
         cur_driver=""
     fi
 
-    # Choose a matching module installed under .../extra/
+    # Choose a matching module installed under /extra or /updates
     new_module=$(
         modprobe -R "$MODALIAS" | tr - _ |
             while read -r m; do
-                if modinfo -F filename "$m" | grep -q /extra/; then
+                if modinfo -F filename "$m" |
+                   grep -q '/extra/\|/updates/'; then
                     echo "$m"
                     break
                 fi