i use an QHY 5R camera for guiding , it is recognized by Stellarmate i can make some pictures but xhen i launch PHD2 and select QHY 5 camera i have this message
Libusb failed to open camera QHY5
do you know how to solve it ? thanks
When you select the camera this way you not use Indi but directly the qhy software from PHD2. In this case I suggest you upgrade to the version 2.6.5dev6 because the qhy library as been updated.
But if it work with Indi you can select "INDI camera" instead, then click the "Camera setup" button to select the driver. Please note that the Indi server with the qhy driver must be running before you do that.