use udev rules instead of hotplug to set device permissions

sane/.footprint

@@ -1,8 +1,7 @@
 drwxr-xr-x	root/root	etc/
-drwxr-xr-x	root/root	etc/hotplug/
-drwxr-xr-x	root/root	etc/hotplug/usb/
--rw-r--r--	root/root	etc/hotplug/usb/libsane.usermap
--rwxr-xr-x	root/root	etc/hotplug/usb/libusbscanner
+drwxr-xr-x	root/root	etc/udev/
+drwxr-xr-x	root/root	etc/udev/rules.d/
+-rw-r--r--	root/root	etc/udev/rules.d/libsane.rules
 drwxr-xr-x	root/root	usr/
 drwxr-xr-x	root/root	usr/bin/
 -rwxr-xr-x	root/root	usr/bin/gamma4scanimage

sane/Pkgfile

@@ -5,7 +5,7 @@
 
 name=sane
 version=1.0.17
-release=2
+release=3
 source=(ftp://ftp.sane-project.org/pub/$name/$name-backends-$version/$name-backends-$version.tar.gz)
 
 build () {
@@ -19,10 +19,10 @@ build () {
     make
     make prefix=$PKG/usr install
 
-    install -d $PKG/{etc/hotplug/usb,var/lock}
+    sh tools/udev/convert-usermap.sh tools/hotplug/libsane.usermap
+    install -d $PKG/{etc/udev/rules.d,var/lock}
     install -d -g scanner -m 775 $PKG/var/lock/sane
-    install -m 755 tools/hotplug/libusbscanner $PKG/etc/hotplug/usb
-    install -m 644 tools/hotplug/libsane.usermap $PKG/etc/hotplug/usb
+    install -m 644 libsane.rules $PKG/etc/udev/rules.d
 
     rm -r $PKG/usr/{doc,share}
 }

sane/README

@@ -10,21 +10,21 @@ POST-INSTALL
   1. To find the vendor/product id of your scanner, run the command:
 
      # sane-find-scanner -q
-     found USB scanner (vendor=0x04a9 [Canon], product=0x2204 [CanoScan] at libusb:002:002
+     found USB scanner (vendor=0x04a9, product=0x2204 [CanoScan FB630U] at libusb:001:005
 
-     You need the 'vendor' id (0x04a9) and the 'product' id (0x2204)
+     You need the 'vendor' id (04a9) and the 'product' id (2204)
 
-  2. Check if /etc/hotplug/usb/libsane.usermap already knows about 
+  2. Check if /etc/udev/rules.d/libsane.rules already knows about 
      your scanner. If your scanner is not in this list, add a line 
-     like the following, remember to replace 0x04a9 and 0x2204 with 
+     like the following, remember to replace 04a9 and 2204 with 
      your values:
 
-     libusbscanner   0x0003  0x04a9  0x2204  0x0000  0x0000  0x00  0x00 0x00  0x00  0x00  0x00  0x00000000
-
-  3. Check the file permissions in /proc/bus/usb after you have plugged 
+     SYSFS{idVendor}=="04a9", SYSFS{idProduct}=="2204", MODE="660", GROUP="scanner"
+  
+  3. Check the file permissions in /dev/bus/usb after you have plugged 
      in your scanner device.
 
-     # ls -l /proc/bus/usb/001
+     # ls -l /dev/bus/usb/001
      total 0
      -rw-r--r--  1 root root    43 Aug  3 10:58 001
      -rw-rw----  1 root scanner 50 Aug  3 10:58 005