Unable to capture on Sony A9

[kenleejl]

Describe the bug

A clear and concise description of what the bug is.
Unable to capture photo
gphoto2 --capture-image-and-download --debug --debug-logfile=capture.log
ERROR: Could not capture image.
ERROR: Could not capture.

Name the camera
If this is camera specific, include the camera name as shown by gphoto2 --auto-detect or USB IDs
gphoto2 --auto-detect
Model Port

Sony Alpha-A9 (Control) usb:001,007

libgphoto2 and gphoto2 version
output of: gphoto2 --version

This version of gphoto2 is using the following software versions and options:
gphoto2 2.5.28.1 gcc, popt(m), exif, no cdk, aa, jpeg, no readline
libgphoto2 2.5.31.1 standard camlibs (SKIPPING docupen lumix), gcc, no ltdl, EXIF
libgphoto2_port 0.12.2 iolibs: disk ptpip serial usb1 usbdiskdirect usbscsi, gcc, no ltdl, EXIF, USB, serial without locking

To Reproduce
Steps to reproduce the behavior:

If its a camera misbehavior, attach debug output using --debug --debug-logfile=debug.log (if considered useful).
summary.txt