how to check FUS version on WLC 8510?
(Cisco Controller) >show sysinfo
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.2.161.0
RTOS Version..................................... 8.2.161.0
Bootloader Version............................... 8.1.102.0
Emergency Image Version.......................... 8.1.102.0
Build Type....................................... DATA + WPS