bulb cannot work

XYang <[email protected]>
Newsgroups gmane.comp.multimedia.gphoto.user
Message-ID <[email protected]>
Hi, 

I'm new on gphoto2, and I'm trying to trigger a bulb capture on my Cannon
EOS 100D camera. But when I try to set the shutter speed to bulb mode, an
error happened:

/*** Error ***
The property 'Shutter Speed' / 0xd102 was not set, PTP errorcode 0x2019.

*** Error ***
Failed to set new configuration value bulb for configuration entry
shutterspeed.
*** Error (-110: 'I/O in progress') ***
/
Other commands work fine, I can capture photo correctly, and I can set other
shutter speed, except bulb.
And I tried to use

/gphoto2 --config/

to set the shutter speed, still error:
/
Could not set configuration: I/O in progress/

I'm wondering what's going wrong with it? Is EOS 100D not suitable for bulb?



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