How can I see the messages from dev_*() functions in mt76?

For Developers
1

Hi. I'm trying to modify TWT part of mt7915 code for my Linksys E8450.
I want to see the messages from functions like dev_info, but I cannot find them from dmesg or logread.

When building openwrt firmware, I enabled tracing in kmod-mac80211 from menuconfig, kernel debugging, miscellaneous debug code, kernel function tracer from kernel_menuconfig, but still couldn't see the messages.
Even worse, tracing mt7915 TWT functions did not output any messages on trace_pipe.
(I could see messages from tracing TWT events)

I found the patch disabling debug messages from developer guide (https://dev.archive.openwrt.org/ticket/15658)
Is it due to the patch?

2

You can enable hostap debug, nothing to do with kernel tracing/debugging.

3

Could you explain it a bit more specifically? Changing the hostapd log level didn't make any difference.

I just chose function tracing as an alternative because I couldn't see the messages from the dev_* functions.