TCL TV - android adb command - Home Assistant

tcl.yml

entity_id: media_player.tcl_tv
command: "am start -n com.tcl.tv/.TVActivity"

Good afternoon, how can I change the backlight brightness on TCL TV?
com.tcl.settings.viewmodel.picture.BacklightSeekbarLayoutVM
how to call this method?

Good afternoon, how can I change the backlight brightness on TCL TV? com.tcl.settings.viewmodel.picture.BacklightSeekbarLayoutVM how to call this method?

adb shell service call tcl_tv_display 100 i32 0 i32 <0-100> i32 0

unfortunately no...maybe I can somehow use com.tcl.settings.model.PictureBaseManager and pass parameters there?

@OM-3kChcBjgFR2COfP maybe we're running different implementations. For me, get/setBacklight had transaction ids 101 and 100 were in system_ext/framework/com.tcl.tv.display.jar

Maybe you can call this from your app, I don't know.

@Override // com.tcl.tv.display.ITvDisplayManagerService
public boolean setBacklight(int type, int value, int act) throws RemoteException {
    Parcel _data = Parcel.obtain();
    Parcel _reply = Parcel.obtain();
    try {
        _data.writeInterfaceToken(DESCRIPTOR);
        _data.writeInt(type);
        _data.writeInt(value);
        _data.writeInt(act);
        boolean _status = this.mRemote.transact(Stub.TRANSACTION_setBacklight, _data, _reply, 0);
        if (!_status && Stub.getDefaultImpl() != null) {
            return Stub.getDefaultImpl().setBacklight(type, value, act);
        }
        _reply.readException();
        boolean _status2 = _reply.readInt() != 0;
        return _status2;
    } finally {
        _reply.recycle();
        _data.recycle();
    }
}

Has anyone found a solution for brightness? When I try to call service tcl_tv_display it says the service doesn't exist, although they seem to exist if I run a service list

service : type=1400 audit(0.0:72): avc: denied { call } for scontext=u:r:shell:s0 tcontext=u:r:tcl_display_service:s0 tclass=binder permissive=0

It seems SELinux is preventing me from interacting with this service :(
If anyone knows another way to change the brightness, I'd greatly appreciate it.

Did you find a solution yet?
I found that com.tcl.settings.model.PictureBaseManager has a method setGraphicBacklight. But could not figure out how to call it.