Hi, This means the "bulb" widget is not available.
Is it shown when you do gphoto2 --list-config Also can you reply with included gphoto2 --summary output? Ciao, Marcus On Mon, May 08, 2023 at 05:53:12PM +0800, rice wrote: > Hello, > > I am using gp_ widget_ get_ child_ by_ name(),return value -2,const char > *name is "bulb". I don't understand why I can't use it, my libgphoto2 version > is 2.5.30. _______________________________________________ Gphoto-devel mailing list Gphoto-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gphoto-devel