Hi Emmanuel, Thanks for your response and advice, I did try to use the same command script dbus-send net.connman.Manager.GetServices, but I had to abandon it due to unreliable responses, my device has 2 interfaces of 4G LTE and WiFi, I could reliably get 4G LTE entry all the time, but I could only get a list of WiFi SSIDs sometime, not sure if it is normal behavior or what I could be missing? I ran your dbus-send net.connman.Technology.Scan command, didn't seem useful response: $ dbus-send --system --print-reply --dest=net.connman /net/connman/technology/wifi net.connman.Technology.Scan method return time=1621820527.013800 sender=:1.4 -> destination=:1.22 serial=120 reply_serial=2 Thank you very much. Kind regards, jupiter On 5/21/21, VAUTRIN Emmanuel (Canal Plus Prestataire) <Emmanuel.VAUTRIN(a)cpexterne.org&gt; wrote: > Hi Jupiter, > >> For users to select a proper SSID to configure connman WiFi, the >> device needs to scan WiFi SSIDs, we don't have Python in our device's >> small footprint, we cannot run connmanctl. >> >> Are there any methods in connman to run WiFi scan? What alternative >> open source (in C or C++) are you using for scanning WiFi SSID to find >> your WiFi SSID name to configuring connman WiFi remotely? > > I am not pretty sure having understood your need, but > there is the dbus interface to both performing a scan and retrieving the > service list. > > If you want to test by inline commands, you can use dbus-send > dbus-send --system --print-reply --dest=net.connman > /net/connman/technology/wifi net.connman.Technology.Scan > dbus-send --system --print-reply --dest=net.connman / > net.connman.Manager.GetServices > or gdbus call > gdbus call --system -d net.connman -o /net/connman/technology/wifi -m > net.connman.Technology.Scan > gdbus call --system -d net.connman -o / -m net.connman.Manager.GetServices > > After that, you will need to integrate these 2 interfaces from ConnMan dbus > API. > Hoping it will solve your problem, > > Emmanuel >