On 5/7/24 14:51, Wesley Cheng wrote: > For userspace to know about certain capabilities of the current platform > card, add tags to the components string that it can use to enable support > for that audio path. In case of USB offloading, the "usboffldplybk: 1" tag usboffloadplayback? same question as before, do we need spaces? And if we have controls, why do we need component strings? The component string is not dynamic to the best of my knowledge, this could be problematic if the card is no longer capable of supporting this stream, while a control can be updated at will.