execute : wireless-controller list‑wtp‑image
 
wireless-controller list‑wtp‑image
Use this command to list all firmware images for WLAN Termination Points (WTPs), also known as WiFi physical access points.
Syntax
execute wireless-controller list-wtp-image
Example output
WTP Images on AC:
ImageName ImageSize(B) ImageInfo ImageMTime
FAP22A-IMG.wtp 3711132 FAP22A-v4.0-build212 Mon Jun 6 12:26:41 2011