indi_qhy_ccd exposure time out when used with indi_qhycfw2_wheel

[joxda]

After reverting the QHY SDK for the camera to an older version (in the newest version it always fails), I can use indi_qhy_ccd again with my QHY5III178M as guide camera -- unless I also run the indi_qhycfw2_wheel. It doesnt matter whether the filter wheel is plugged in, the difference is whether or not the driver is connected. When it connected and I request a capture in Ekos for the guide camera it times out, restarts the exposure twice (as noted in the Ekos log), and does not load the image. The INDI log give the error message: GetQHYCCDSingleFrame error (-1). When disconnecting the indi_qhycfw2_wheel it works again to take in image.

To reproduce, I need to:

• run both the indi_qhy_ccd and indi_qhycfw2_wheel drivers
• take an image.
• then it tries several times to do that, and produces the error "GetQHYCCDSingleFrame error (-1)"

I can work around the problem by disconnecting the filter wheel driver, taking the image, and then connecting it again, but I would expect it to work also without this rather annoying complication.

I am running INDI v1.8.8 on a raspberry pi, just the QHYCCD SDK is downgraded to 20.11.26.