rtw88bu:rfe support needed about rtw88-usb HOT 5 OPEN

Related, I have a new out of box rtl8821cu module that reports "rfe = 0xff" so this driver aborts. I've tried the https://github.com/morrownr/8821cu driver as well, and it allows overrriding with a manual figure, but no guidance on what to set it to. I've set it to "1" on this device and... well, it functions at least, not sure what's out of range now though :)

from rtw88-usb.

I assume RFE with RF endpoint aka power amplifier (PNA), low noise applifier (LNA) and antenna
you may void your regulations.

RFE with 0xff is mostly because unpopulated EEPROM values.

from rtw88-usb.

who's meant to be populating them, and how can I write to them? These are using pcb modules, so the antenna path is under our control, is there tooling to write eeprom values over usb?I still don't know what numbers should be used

from rtw88-usb.

Weird thing.
I have a working 8821cu device and also some "not working" 8821cu device.
Both have "filled" eeproms, but I need to check the offsets.
Also I have a working 8821ce device.
I'm preparing some branches for updates from master (vanilla linux) up to v5.13
and dumping the eeprom contents.

from rtw88-usb.

please checkout
rfe_eeprom_dump
branch

This will dump physical and logical layout of the eeprom
I need only the logical layout.
here some "example"

[  474.662370] rtw_8821cu 1-1.4:1.2: dump locial map
[  474.667086] 00000000: 29 81 00 bc 09 00 21 00 6e 04 a4 34 10 00 30 0b  ).....!.n..4..0.
[  474.675106] 00000010: 1f 20 21 21 21 21 27 28 29 29 29 ff ff ff ff ff  . !!!!'())).....
[  474.683120] 00000020: ff ff 27 26 26 26 26 26 25 25 24 24 22 24 24 24  ..'&&&&&%%$$"$$$
.. /* Here is the miracle */
[  474.795321] 00000100:

I need this from 0x000 until 0x0100
Also I left missing part intentional blank ;-)

from rtw88-usb.