The raw image data has 10bit (V1 camera) or 12bit (HQ camera) for each pixel. This data is left-aligned in the uint16_t FITS data array. By theory this should not make a difference to the image quality. But it seems common practice to right align data in FITS. At least the images created by the INDI CCD simulator is doing it this way. Just to avoid doing things different the driver should also right align the data.
The raw image data has 10bit (V1 camera) or 12bit (HQ camera) for each pixel. This data is left-aligned in the uint16_t FITS data array. By theory this should not make a difference to the image quality. But it seems common practice to right align data in FITS. At least the images created by the INDI CCD simulator is doing it this way. Just to avoid doing things different the driver should also right align the data.