WED not working on MT7986 but works on MT7915 of a tri-band router (tp-link xtr-8488)

[lightningroood]

Hi, I noticed that WED only activates on one of the 5G radios of my tri-band router. Is this expected behaviour? If only one radio can have WED, how can I select the radio to have WED enabled? The MT7986's built-in radio is more capable than MT7915 for this router model. So I prefer WED enabled for it rather than MT7915. Please kindly advise.

Device:

TP-Link TL-XTR8488

Openwrt version:

OpenWrt 25.12.0-rc4 r32534-12374d88b9 / LuCI (HEAD detached at 81517f5) branch 26.029.67016~81517f5

Kernel version:

6.12.66

How i enabled WED

# added following line to /etc/modules.conf 
options mt7915e wed_enable=Y

dmesg:

[   10.418248] mt7915e 0000:01:00.0: assign IRQ: got 125
[   10.423315] mt7915e 0000:01:00.0: enabling device (0000 -> 0002)
[   10.429381] mt7915e 0000:01:00.0: enabling bus mastering
[   10.538077] mt7915e 0000:01:00.0: attaching wed device 0 version 2
[   10.583128] platform 15010000.wed: MTK WED WO Firmware Version: DEV_000000, Build Time: 20240823160853
[   10.592481] platform 15010000.wed: MTK WED WO Chip ID 00 Region 3
[   10.816814] mt7915e 0000:01:00.0: HW/SW Version: 0x8a108a10, Build Time: 20240429200716a
[   10.816814] 
[   10.949524] mt7915e 0000:01:00.0: WM Firmware Version: ____000000, Build Time: 20240429200752
[   10.973667] mt7915e 0000:01:00.0: WA Firmware Version: DEV_000000, Build Time: 20240429200812
[   11.090868] mt7915e 0000:01:00.0: registering led 'mt76-phy0'
[   11.150822] mt798x-wmac 18000000.wifi: attaching wed device 1 version 2
[   11.196440] platform 15011000.wed: MTK WED WO Firmware Version: DEV_000000, Build Time: 20240823160852
[   11.205827] platform 15011000.wed: MTK WED WO Chip ID 00 Region 3
[   11.212148] platform 15011000.wed: failed to attach wed device
[   13.219287] platform 15011000.wed: failed to disable wed-wo
[   13.557659] mt798x-wmac 18000000.wifi: HW/SW Version: 0x8a108a10, Build Time: 20240823160656a
[   13.557659] 
[   13.736724] mt798x-wmac 18000000.wifi: WM Firmware Version: ____000000, Build Time: 20240823160721
[   13.833131] mt798x-wmac 18000000.wifi: WA Firmware Version: DEV_000000, Build Time: 20240823160840
[   13.939976] mt798x-wmac 18000000.wifi: registering led 'mt76-phy1'
[   13.989302] mt798x-wmac 18000000.wifi: registering led 'mt76-phy2'
[   14.062599] PPP generic driver version 2.4.2
[   14.067798] NET: Registered PF_PPPOX protocol family
[   14.075602] kmodloader: done loading kernel modules from /etc/modules.d/*
[   16.257961] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[   16.273626] mtk_soc_eth 15100000.ethernet eth0: configuring for fixed/2500base-x link mode
[   16.282184] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx