[RTW8821CE] Attempting to create RFMON interface with active flag causes interface to be stuck down.

[c0des1ayr]

I'm using a laptop, and trying to make wlan0mon with the active flag makes it impossible to set the interface to up, making it useless for Open Wireless Link. Is it an issue due to back-porting, or just an upstream issue?

[dubhater]

rtw88 doesn't support active monitor mode. Maybe it could support that, but I haven't investigated yet. It depends on whether Realtek's firmware wants to cooperate or not.

[dubhater]

Oh, wait. In this repository rtw88 advertises support for active monitor mode. Larry did that for testing purposes, I guess, but it doesn't work.

[c0des1ayr]

I only made the issue because the module from this repo added Device supports active monitor (which will ACK incoming frames) to iw phy's output, and I could create the interface with the flag.