Set A_MSDU and A_MPDU

[Bluegentleman]

Hello to everyone.
How do I make sure that the Wi-Fi link does not use A_MSDU?

I know that in the ASUS native settings I can disable aggregation for WLAN.
(edit: Apparently it also just reduces A_MSDU and does not disable it completely.)
But in OpenWrt I can not find any setting to disable it similarly.
The only /etc/config/wireless configuration I found so far is the "max_amsdu" but that only differentiates between two length.
Is the configuration of A_MSDU somehow encoded in some high throughput setting?

Ideally I want to only use A_MPDU (Block ACKs) but for that I also find no configuration parameter.
How can I force A_MPDU?
I assume that if I find one configuration parameter, the other one will be quite similar.

I use the ASUS RT-AX53U model, by the way.

Thanks for reading and your help in advance.

[brada4]

You have to override ht_capab using hostapd option
Ref https://openwrt.org/docs/guide-user/network/wifi/basic
After examining /var/run/hostapd-phy0.conf (and -phy1. for other band)

You can selectively disable frame aggregation by using voice dscp class via firewall.

[Bluegentleman]

Thank you very much.
The DSCP for QoS is a good idea.