MU Beamformee support?

[Ming Kuang]

On Wed, 2025-04-30 at 17:42 +0300, Martin-Éric Racine wrote:
> (non-subscriber; please keep me in CC)
> Greetings,
> 
> Having recently purchased an AC1300 dongle supported by the
> rtw88_8822bu Linux driver, I ran into an unexpected VHT feature during
> configuration.
> 
> The relevant 'iw list' fragment:
> 
> VHT Capabilities (0x03d071b2):
>     Max MPDU length: 11454
>     Supported Channel Width: neither 160 nor 80+80
>     RX LDPC
>     short GI (80 MHz)
>     TX STBC
>     SU Beamformee
>     MU Beamformee
> 
> The last line is what baffles me: The hostap.conf example in upstream
> hostapd Git has an option for "MU Beamformer" but there is no mention
> of "MU Beamformee" anywhere.
> 
> Typo in the Linux rtw88 driver or missing configuration option in
> hostapd?

This is not a typo, but a normal specification noun.

Usually, the transmitter is called a beamformer (most of the time it is
an AP), and the receiver is called a beamformee (most of the time it is
a STA).