When Canon 650D is NOT in TV mode and I try to set it to TV mode, I get such output:
# gphoto2 --debug --debug-logfile=my-logfile.txt --set-config autoexposuremode=1 *** Error *** The property 'Canon Auto Exposure Mode' / 0xd105 was not set, PTP errorcode 0x2019. *** Error *** Failed to set new configuration value 1 for configuration entry autoexposuremode. *** Error (-110: 'I/O in progress') ***
I attached 'my-logfile.txt'.
Also in some modes (for example, A+), the returned 'autoexposuremode' is null:
# gphoto2 --get-config autoexposuremode Label: Canon Auto Exposure Mode Type: RADIO Current: (null) Choice: 0 P Choice: 1 TV Choice: 2 AV Choice: 3 Manual Choice: 4 Bulb Choice: 5 A_DEP Choice: 6 DEP Choice: 7 Custom Choice: 8 Lock Choice: 9 Green Choice: 10 Night Portrait Choice: 11 Sports Choice: 12 Portrait Choice: 13 Landscape Choice: 14 Closeup Choice: 15 Flash Off
Found similar ticket: https://sourceforge.net/p/gphoto/bugs/923/
sadly on my EOS1000D it works :(