reg domain appears unset when onboard Wi-Fi is enabled

[joshschmelzle]

With RPi5 + vanilla bookworm OS + Netgear Wi-Fi 6E USB adapter, profiler warns that reg domain appears unset. consider setting it with 'iw reg set XX' even when the reg has been set.

See warning lines:

jerry@raspberrypi:~ $ sudo profiler -i wlan1 --debug 
2024-09-19 02:50:39,336 [DEBUG] start: profiler version 1.0.18
2024-09-19 02:50:39,336 [DEBUG] start: python platform version is 3.11.2
2024-09-19 02:50:39,336 [DEBUG] start: scapy version is 2.5.0
2024-09-19 02:50:39,341 [DEBUG] start: profiler.manager pid 1741
2024-09-19 02:50:39,342 [DEBUG] start: config {'GENERAL': {'channel': 36, 'interface': 'wlan1', 'ssid': 'Profiler 4e0', 'ft_disabled': False, 'he_disabled': False, 'be_disabled': False, 'profiler_tlv_disabled': False, 'listen_only': False, 'hostname_ssid': False, 'files_path': '/var/www/html/profiler', 'frequency': 0}}
2024-09-19 02:50:39,350 [DEBUG] interface: wlan1 has a mac80211 stack
2024-09-19 02:50:39,359 [DEBUG] interface: phy2 maps to provided wlan1
2024-09-19 02:50:39,359 [DEBUG] interface: new wlan1mon will map to phy2
2024-09-19 02:50:39,359 [DEBUG] interface: frequency is set to 5180 which maps to channel 36
2024-09-19 02:50:39,366 [WARNING] interface: reg domain appears unset. consider setting it with 'iw reg set XX'
2024-09-19 02:50:39,366 [WARNING] interface: https://wireless.wiki.kernel.org/en/users/documentation/iw#updating_your_regulatory_domain
2024-09-19 02:50:39,366 [DEBUG] interface: mac: 94:18:65:48:50:cb, channel: 36, driver: mt7921u, driver-version: 6.6.31+rpt-rpi-2712, chipset: NetGear Wireless_Device

iw reg get:

jerry@raspberrypi:~ $ iw reg get
global
country US: DFS-FCC
	(902 - 904 @ 2), (N/A, 30), (N/A)
	(904 - 920 @ 16), (N/A, 30), (N/A)
	(920 - 928 @ 8), (N/A, 30), (N/A)
	(2400 - 2472 @ 40), (N/A, 30), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
	(5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW
	(5470 - 5730 @ 160), (N/A, 24), (0 ms), DFS
	(5730 - 5850 @ 80), (N/A, 30), (N/A), AUTO-BW
	(5850 - 5895 @ 40), (N/A, 27), (N/A), NO-OUTDOOR, AUTO-BW, PASSIVE-SCAN
	(5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR, PASSIVE-SCAN
	(57240 - 71000 @ 2160), (N/A, 40), (N/A)

phy#0
country 99: DFS-UNSET
	(2402 - 2482 @ 40), (6, 20), (N/A)
	(2474 - 2494 @ 20), (6, 20), (N/A)
	(5140 - 5360 @ 160), (6, 20), (N/A)
	(5460 - 5860 @ 160), (6, 20), (N/A)

jerry@raspberrypi:~ $ 

The issue in the output above is phy#0 is the onboard BRCM chip and has UNSET in the line.

wlanpi-profiler/profiler/interface.py

Lines 204 to 218 in 4d84770

	def check_reg_domain(self) -> None:
	"""Check and report the set regulatory domain"""
	regdomain_result = run_command(["iw", "reg", "get"])
	regdomain = [line for line in regdomain_result.split("\n") if "country" in line]
	if "UNSET" in "".join(regdomain):
	if "iwlwifi" not in self.driver:
	self.log.warning(
	"reg domain appears unset. consider setting it with 'iw reg set XX'"
	)
	self.log.warning(
	"https://wireless.wiki.kernel.org/en/users/documentation/iw#updating_your_regulatory_domain"
	)
	else:
	self.log.debug("reg domain set to %s", " ".join(regdomain))
	self.log.debug("see 'iw reg get' for details")

Perhaps there is a better way to handle regulatory detection when multiple adapters are present with different drivers.