Why linux WIFY noise always Zero?

[missyoyo]

When I try this command, seems wireless noise -256 cat /proc/net/wireless Inter-| sta-| Quality | Discarded packets | Missed | WE face | tus | link level noise | nwid crypt frag retry misc | beacon | 22 wlp2s0: 0000 63. -47. -256 0 0 0 0 6 0

But kismet seems can not get wlp2s0 noise: kismet.common.signal.max_noise always 0 This is some kind of issue or hardware not support?We use 5.15.0-88-generic(ubuntu 22.04) and Network controller: Intel Corporation Wireless 7265 (rev 61) By the way my Macos use BCM wireless card, noise works good.