Wacom Bluetooth devices support

modulename: wacom.ko

and/or

hid-wacom.ko

configname: CONFIG_HID_WACOM

Linux Kernel Configuration
└─>Device Drivers
└─>HID support
└─>Special HID drivers
└─>Wacom Bluetooth devices support
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
Support for Wacom Graphire Bluetooth and Intuos4 WL tablets.

source code:
drivers/hid/hid-wacom.c