“Here, this viññāna is kamma viññāna, and also viññāna as in “viññāna paccayā nāmarūpa”, correct?”
That is correct, Lang.
Also, cakkhu, sota, ghana, jivha, kaya viññāna do not generate kamma. They are vipaka viññāna.
– Mano viññāna can be both vipaka viññāna AND kamma viññāna.
– It is only mano viññāna that generate kamma.
– So, it is only mano viññāna that contribute to “viññāna paccayā nāmarūpa”.
– I mention this here because many people may have missed this important point.
See, “Viññāna – What It Really Means“.