Verified: Jieli Br21 Driver

  • udev/input rules or kernel input mapping for buttons.
    • / 
    br21@0 
        compatible = "jieli,br21";
        reg = <0>;
        status = "okay";
        reset-gpios = <&gpio 23 0>;
        wake-gpios = <&gpio 24 0>;
        uart = <&uart1>;
        clocks = <&clk16m>;
        vccio-supply = <&vdd_3v3>;
    ;
;

    @everyone Quick update regarding the hardware debugging:

    The Jieli BR21 Driver is officially VERIFIED. ✅

    We successfully established a connection with the chip this morning. If you are flashing firmware, ensure your USB cable is data-capable (a common pitfall) and that you have the correct .inf file installed. jieli br21 driver verified

    No more "Unknown Device" errors. Proceeding with firmware dump now.

    If the installation succeeds without an error, you have installed the verified Jieli BR21 driver. udev/input rules or kernel input mapping for buttons

    Step 1 – Remove old drivers

    Step 2 – Download official Jieli BR21 driver / br21@0 compatible = "jieli,br21"; reg = &lt;0&gt;;

    Step 3 – Manual verification

    Step 4 – Use Microsoft Catalog (if generic)