TpLink C7 V5 - Wifi button not recognnzed

Hi ,

I installed OpenWRT on my TpLink C7 V5.
I ve got just on feature problem : The wifi button dosen't start any action.

I checked this documentation : [OpenWrt Wiki] Attach functions to a push button
==> The hex value of the button in the file /sys/firmware/devicetree/base/keys is
0211 KEY_WPS_BUTTON wps

Then, when I test the name of this button folowing the next steps (install kmod-button-hotplug), pushing this button, doesn't print any entry.

Somebody have this button working.

What can I do to debug this situation ?