[PREVIEW] Initial focuser support added to indi_celestron_aux

[ijessen]

This is functional - but testing has been limited. Most importantly, I haven't tested with an uncalibrated focuser.

I took a slightly different approach than the focuser implementation in the core celestrongps driver - namely I adopted the interface guidance that the absolute position property value ranges from 0 to max. I do this by applying an offset (the min value from calibration), and therefore the abs position value from the driver will be offset from the abs position displayed on the HC. I also skipped relative positioning because I don't see a use case for it when absolute is available.

Backlash not yet implemented.

Astyle not (yet) applied.

[knro]

Thanks! So what's the procedure exactly with a new uncalibrated focuser? Should there be a similar calibration workflow like in the HC driver?

[ijessen]

As is there's nothing here to initiate a calibration - the interface isn't loaded unless a valid calibration is already present (you would have to use an HC or other driver to launch the calibration routine). That said it's easy enough to add (and I see that there's an example to copy from in the dedicated celestron focuser driver in the core repo). I'll have some time later in the week to fiddle with it.

[knro]

@ijessen Did you test this? any issues?

[ijessen]

@ijessen Did you test this? any issues?

Haven't gotten around to adding in calibration support yet. I was waiting until I get to that before taking the PR out of draft. That said I've been using this in the field for a couple weeks and it's been rock solid.

[knro]

Awesome, looking forward to the final driver!

[knro]

@ijessen Any update? should we merge this as-is to get some community feedback? any show stoppers?