Hello devs, I have a question about the implementation of adaptive frequency-hopping (AFH) in the NimBLE stack. Where does the marking of unused channels happen? If there is interference, channels used by other technologies like WiFi should be marked as unused.
In the code I see that there is a HCI-command (OCF==0x0014, BLE_HCI_OCF_LE_SET_HOST_CHAN_CLASS) which seems to set a channel map by triggering appropriate link-layer functions. Probably this is also used to mark channels as unused for AFH. But this HCI-command is never called/referenced by the host code of NimBLE. So my question is: How and by which criteria does NimBLE recognize channels with interference and how does it perform masking of this channels as unused? Or can it be that this feature is currently not implemented? Thank you for your help! kind regards, Alex
