Raspberry pi 4 hotspot 2.4GHz, not 5Ghz.

[egisz]

I noticed that while in hotspot mode, crankshaft uses 2.4GHz mode, not 5GHz as it is recommended for better stability and quality.
I digged a bit and managed to fix it editing file /etc/hostapd/hostapd.conf:
Changed lines:

hw_mode=a
channel=40

It would be nice to autodetect that CS is running on RPI 3B+/4 and set these settings during install.
I remember we have revision detection in QT5 build scripts.
But it's also possible to check supported frequencies with command:
iw list

[matt2005]

Yeah that's sounds good, I'll have a look at making a 2.4/5 option in gui and disable 5 from being selected if not supported. Just waiting for pi4 to arrive.