About the hostapd support DBDC chip in openwrt router

[Andy Huang-黃俊欽]

Hi,
    Recently we want to use WCN6856 on MTK router platform (kernel 5.4) with ath11k backport .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 ?  Thanks for your time.


Best,
Andy

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