/proc/bus/usb has permissions 664 and gid of 'usb' for all items.
udev should provide the same for /dev/bus/usb, so users in the 'usb' group can
access usb devices from userland (eg sane, gphoto).

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>

--- 50-udev.rules.x	2006-10-07 16:25:26.000000000 -0700
+++ 50-udev.rules	2006-10-07 16:25:47.000000000 -0700
@@ -244,7 +244,7 @@
 
 
 # usbfs-like device nodes
-SUBSYSTEM=="usb_device", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="0644"
+SUBSYSTEM=="usb_device", PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", NAME="%c", MODE="0664", GROUP="usb"
 
 
 # Module autoloading