[sx1262] cad_rx

Hi guys,
I am working on an implementation where I want to switch from CAD to RX to receive a downlink whenever some channel activity is detected. From the datasheet section 13.4.7 it is clear that there is a mode CAD_RX that automatically implements this behaviour.
Now I have trouble intercepting an IRQ in this mode. The CAD_Detected IRQ is fired and thus the receiver should end up in RX mode, but how can I detect once this yields a RX_DONE or RX_TIMEOUT? Adding RX_DONE to the CAD mask does not yield any IRQ.
Any ideas or suggestion? Thanks in advance!