I've just installed and prepared a Raspberry Pi for remote operation, and it's seems to work very nicely - except for my Canon DSLR. It's connected and found by R-Pi, according to dmesg:
[ 560.533024] usb 1-1.4.4: new high-speed USB device number 10 using dwc_otg
[ 560.635465] usb 1-1.4.4: New USB device found, idVendor=04a9, idProduct=3253
[ 560.635498] usb 1-1.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 560.635516] usb 1-1.4.4: Product: Canon Digital Camera
[ 560.635533] usb 1-1.4.4: Manufacturer: Canon Inc.
[ 1238.789720] usb 1-1.4.4: USB disconnect, device number 10
[ 1247.476036] usb 1-1.4.4: new high-speed USB device number 11 using dwc_otg
[ 1247.578243] usb 1-1.4.4: New USB device found, idVendor=04a9, idProduct=3253
[ 1247.578267] usb 1-1.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1247.578279] usb 1-1.4.4: Product: Canon Digital Camera
[ 1247.578291] usb 1-1.4.4: Manufacturer: Canon Inc.
However, Indi cannot open camera. I've had the same problem using an Ubuntu laptop, but then all I had to do was to "unmount" the camera in the file manager. How do I do this in R-Pi? Or what can I do? Grateful for any advice...
Losmandy G11, Celestron CGE-Pro
Celestron C11, C8
Skywatcher 100 ED Pro
QHY268m, Atik 383L+, ASI294
I've just tried the same, with a 450D it seems to work on Raspbian and indilib 1.2, no unmounting needed.
The FITS viewer doesn't work though in Kstars running on another Pi. Kstars crashes after download of the image. Possibly asking too much after all...
CCDCiel on a Windows laptop picks up and shows the image file nicely.