Thanks for your answer and sorry for breaking the forum rules that i understand. I just resend a post as I discover that it was in the wrong category and a third time probably by mistake (type twice on submit by error) I did'nt want to put any pressure on persons who make their best to help the community.
To come back to my concern , I did again some research and unfortunatly , I am still in the same situation.
The last build Armbian_23.02.0-trunk_Bananapim5_bullseye_current_6.1.9.img does'nt recongnize the rtl8822cs board on bpi-m5.
I found an image on the banana-pi wiki Armbian_23.02.0-trunk_Bananapim5_bullseye_current_6.1.2.img built the 31/1/2023 which include an overlay meson-sm1-bananapim5-rtl8822cs.dtbo , I try this image modify the armbianEnv.txt and add "overlays=rtl8822cs"
add 88x2cs in /etc/modules. The overlay seems to load correctly at boot the module is loaded but no device in ifconfig and no trace in the linux syslog of any wifi driver config just BT config.
I reached my compentency limits to go further.
Gerard