Jonas Lang Still thinking, and working on this ... .
Sorry, I don't really understand. Of course, I have started with a predefined list, got contact with the provider, received some more muxes than had been noted in the pre-defined list, had the scan starting, finding muxes, and so forth.
Unfortunately, all scans, from the first one after my initial install (just a few weeks ago) until the last one, got stuck at some moment. (All the details can be found in the two forum links in the first post.)
Maybe for demonstration purposes, I attach the w_scan log. This always goes through flawlessly. The scan with tvheadend always gets stuck. The service with which I noticed the consequences is "TV 5 Monde" on 370 MHz.
Further up, thanks to the hint given in the Sundtek forum, I could give the command to actually see what is going on. There it became obvious (I only pasted a few lines of thousands of identical lines) that the scan process got stuck.
Now I could imagine as workarounds, to either scan EVERYTHING, excluding this mux, hoping that the scan goes through without this one; or import the values in the attachment that look good, as list of services to be used in tvheadend.
Or, preferably, an addition to the code that times out on muxes/services on which the scan goes around in circles.
My excuses if I have missed the point of your answer. But so far I have found two ways of initiating a scan: installation->wizard; or Force Scan. I have no idea on how to do better; on initiating a scan solely for one mux, or so.