Hi, Recently I want to use WCN6856 on ARM64 platform (kernel 5.4) with ath11k backports version 5.15.8-1 . But we can’t bring up 2 radio interfaces concurrently, once we bring up the 5G interface at first then get the “device busy” error message when bring up 2.4G radio. But WCN6856 is a DBDC chip, suppose I can bring up two radios in the same time for AP mode. Is it the limitation of driver or HW ? And how do I fix this issue ? Thanks for your time. Best, Andy -- To unsubscribe from this list: send the line "unsubscribe backports" in