Hi everyone!
I’m currently evaluating Morse Micro HaLow chips for a project where FTM (802.11mc / Fine Time Measurement) is a core, deal-breaking requirement.
I’ve done a quick dive into the IoT SDK repository and it looks great — I can clearly see the implementation for both Initiator and Responder roles, as well as the AP-triggered FTM sequences for stations. The bare-metal/RTOS side seems ready to rock.
However, my target platform runs Linux, and I need to clarify the status of FTM for the Linux driver ecosystem (mm-wlan / mac80211 integration).
Could anyone from the core team or community clarify:
Current Status: Is FTM (Fine Time Measurement) currently supported in the upstream/current Linux driver release? Can we trigger ranges and get timestamp payloads via standard nl80211 / iw or vendor-specific tools?
Roadmap: If it’s not fully supported yet, is Linux FTM on the immediate roadmap, and what is the estimated timeline?
Hardware Capabilities: Are there any hardware or firmware limitations regarding the ranging accuracy (e.g., due to the narrower channel bandwidths of 802.11ah like 1/2/4 MHz compared to standard 2.4/5GHz Wi-Fi)?
Would love to hear if anyone has successfully pulled FTM data from a MM chip on a Linux host. Thanks in advance for any insights!
Hi @MaximD
The references to FTM you are seeing in our mm-iot-sdk are the FTM configuration options available in hostap/wpa_supplicant.
Our hardware/firmware does not currently support FTM.
Hi ajudge,
Thank you for the quick and clear answer.
Just to clarify: is this a fundamental hardware limitation (i.e., the silicon lacks high-precision timestamping blocks), or is it currently a lack of firmware/software implementation?
If it’s a software/firmware roadmap item, is there any estimated timeline for adding FTM support?
Best regards,
Maxim