Trigger command accepts any value for port and can trigger incorrect camera more than one camera is connected

[bkapadia01]

Describe the bug The trigger and capture command seems to accept any value for the -port portion of the script which is causing the camera to be triggered when an invalid port value is provided. This is causing an issue when we have more than one camera mounted to the system where the incorrect camera is being triggered when it should not be.

Name the camera Camera name as shown by gphoto2 --auto-detect or USB IDs Canon EOS 5DS R

libgphoto2 and gphoto2 version output of: gphoto2 --version libgphoto2 2.5.27

To Reproduce Steps to reproduce the behavior: The usb port when running gphoto2 --auto-detect for a camera is: Canon EOS 5DS R usb:020,013

Running command with invalid port -port x, note the camera should not be triggered.

gphoto2 --port x --filename TOP_%H-%M-%S.%C --set-config eosremoterelease="Immediate" --set-config eosremoterelease="Release Full" --wait-event-and-download="FILEADDED"

When reproducing with the command line tool, attach debug out using --debug --debug-logfile=debug.log if considered useful

The port you specified ('?mh??') can not be found. Please specify one of the ports found by 'gphoto2 --list-ports' and make sure the spelling is correct (i.e. with prefix 'serial:' or 'usb:').Loading camera driveWaiting for 'FILEADDED' event from camera. Press Ctrl-C to abort.
UNKNOWN PTP Property d105 changed UNKNOWN PTP Property d108 changed UNKNOWN PTP Property d106 changed UNKNOWN PTP Property d107 changed UNKNOWN PTP Property d109 changed UNKNOWN PTP Property d10a changed UNKNOWN PTP Property d10b changed UNKNOWN PTP Property d10c changed UNKNOWN PTP Property d10d changed UNKNOWN PTP Property d10e changed UNKNOWN PTP Property d10f changed UNKNOWN PTP Property d11b changed UNKNOWN PTP Property d114 changed UNKNOWN PTP Property d116 changed UNKNOWN PTP Property d119 changed UNKNOWN PTP Property d110 changed UNKNOWN PTP Property d101 changed UNKNOWN PTP Property d102 changed UNKNOWN PTP Property d103 changed UNKNOWN PTP Property d104 changed UNKNOWN PTP Property d11d changed UNKNOWN PTP Property d111 changed UNKNOWN PTP Property d112 changed UNKNOWN PTP Property d113 changed UNKNOWN PTP Property d17c changed UNKNOWN PTP Property d17d changed UNKNOWN PTP Property d17e changed UNKNOWN PTP Property d120 changed UNKNOWN PTP Property d121 changed UNKNOWN PTP Property d122 changed UNKNOWN PTP Property d15d changed UNKNOWN PTP Property d157 changed UNKNOWN PTP Property d158 changed UNKNOWN PTP Property d159 changed UNKNOWN PTP Property d15a changed UNKNOWN PTP Property d15b changed UNKNOWN PTP Property d15c changed UNKNOWN PTP Property d15e changed UNKNOWN PTP Property d163 changed UNKNOWN PTP Property d164 changed UNKNOWN PTP Property d165 changed UNKNOWN PTP Property d11c changed UNKNOWN PTP Property d1a0 changed UNKNOWN PTP Property d1a0 changed UNKNOWN PTP Property d1a0 changed UNKNOWN PTP Property d1a1 changed UNKNOWN PTP Property d1a8 changed UNKNOWN PTP Property d1a7 changed UNKNOWN PTP Property d1ab changed UNKNOWN PTP Property d1b0 changed UNKNOWN PTP Property d1b1 changed UNKNOWN PTP Property d1b2 changed UNKNOWN PTP Property d1b3 changed UNKNOWN PTP Property d1b4 changed UNKNOWN PTP Property d1b5 changed UNKNOWN PTP Property d1b6 changed UNKNOWN PTP Property d1a9 changed UNKNOWN PTP Property d146 changed UNKNOWN PTP Property d1aa changed UNKNOWN PTP Property d11e changed UNKNOWN PTP Property d1d9 changed UNKNOWN PTP Property d1d5 changed UNKNOWN PTP Property d1ba changed UNKNOWN PTP Property d1cd changed UNKNOWN PTP Property d1bc changed UNKNOWN PTP Property d1b8 changed UNKNOWN FocusInfo eosversion=8,size=8688x5792,size2=8688x5792,points={{-435,652,283,283},{-966,652,283,283},{-1425,652,283,283},{-1860,652,283,283},{-2295,652,283,283},{435,978,283,283},{0,978,283,283},{-435,978,283,283},{-1860,326,283,283},{-2295,326,283,283},{2295,652,283,283},{1860,652,283,283},{1425,652,283,283},{966,652,283,283},{435,652,283,283},{0,652,283,283},{1860,326,283,283},{1425,326,283,283},{966,326,283,283},{435,326,283,283},{0,326,283,283},{-435,326,283,283},{-966,326,283,283},{-1425,326,283,283},{435,0,283,283},{0,0,283,283},{-435,0,283,283},{-966,0,283,283},{-1425,0,283,283},{-1860,0,283,283},{-2295,0,283,283},{2295,326,283,283},{-966,-326,283,283},{-1425,-326,283,283},{-1860,-326,283,283},{-2295,-326,283,283},{2295,0,283,283},{1860,0,283,283},{1425,0,283,283},{966,0,283,283},{-2295,-652,283,283},{2295,-326,283,283},{1860,-326,283,283},{1425,-326,283,283},{966,-326,283,283},{435,-326,283,283},{0,-326,283,283},{-435,-326,283,283},{1425,-652,283,283},{966,-652,283,283},{435,-652,283,283},{0,-652,283,283},{-435,-652,283,283},{-966,-652,283,283},{-1425,-652,283,283},{-1860,-652,283,283},{435,-978,283,283},{0,-978,283,283},{-435,-978,283,283},{2295,-652,283,283},{1860,-652,283,283}},select={},unknown={00001007004000000000000000000000ffff} UNKNOWN PTP Property d1d8 changed UNKNOWN PTP Property d1b7 changed UNKNOWN PTP Property d1cb changed UNKNOWN PTP Property d1db changed UNKNOWN PTP Property d1dc changed UNKNOWN PTP Property d1a3 changed UNKNOWN PTP Property d1a4 changed UNKNOWN PTP Property d1df changed UNKNOWN PTP Property d1bd changed UNKNOWN PTP Property d1c1 changed UNKNOWN PTP Property d1c0 changed UNKNOWN PTP Property d1bf changed UNKNOWN PTP Property d1c4 changed UNKNOWN PTP Property d1c2 changed UNKNOWN PTP Property d1c5 changed UNKNOWN PTP Property d194 changed UNKNOWN PTP Property d195 changed UNKNOWN PTP Property d196 changed UNKNOWN PTP Property d197 changed UNKNOWN PTP Property d198 changed UNKNOWN PTP Property d1dd changed UNKNOWN PTP Property d1c7 changed UNKNOWN PTP Property d199 changed UNKNOWN PTP Property d138 changed UNKNOWN PTP Property d139 changed UNKNOWN PTP Property d13a changed UNKNOWN PTP Property d13b changed UNKNOWN PTP Property d13c changed UNKNOWN PTP Property d13d changed UNKNOWN PTP Property d14d changed UNKNOWN PTP Property d19a changed UNKNOWN PTP Property d19c changed UNKNOWN PTP Property d178 changed UNKNOWN PTP Property d179 changed UNKNOWN PTP Property d17a changed UNKNOWN PTP Property d17b changed UNKNOWN PTP Property d1c9 changed UNKNOWN PTP Property d19f changed UNKNOWN PTP Property d175 changed UNKNOWN PTP Property d14c changed UNKNOWN PTP Property d14b changed UNKNOWN PTP Property d13e changed UNKNOWN PTP Property d1c6 changed UNKNOWN PTP Property d177 changed UNKNOWN Button 1 UNKNOWN PTP Property d102 changed UNKNOWN PTP Property d101 changed UNKNOWN PTP Property d103 changed UNKNOWN OLCInfo event 0x0010 content 00000000 UNKNOWN OLCInfo event 0x0020 content 000000000100 UNKNOWN OLCInfo exposure indicator 0,0,0.0 (00000001) UNKNOWN OLCInfo event 0x0080 content 00000000 UNKNOWN Focus Info 000000000000 UNKNOWN Focus Mask 00000000000000 UNKNOWN OLCInfo event 0x0400 content 00000000000000 UNKNOWN OLCInfo event 0x0800 content 0000000000080000 UNKNOWN OLCInfo event 0x1000 content 00 UNKNOWN OLCInfo event mask=1fff UNKNOWN PTP Property d115 changed UNKNOWN PTP Property d1d0 changed UNKNOWN PTP Property d1d1 changed UNKNOWN PTP Property d1af changed UNKNOWN PTP Property d1d9 changed UNKNOWN PTP Property d1d5 changed UNKNOWN PTP Property d11b changed UNKNOWN PTP Property d11c changed UNKNOWN PTP Property d11b changed UNKNOWN PTP Property d11c changed UNKNOWN PTP Property d11b changed UNKNOWN PTP Property d11c changed UNKNOWN PTP Property d11b changed UNKNOWN PTP Property d1c3 changed UNKNOWN PTP Property d1bf changed UNKNOWN Button 8 UNKNOWN OLCInfo exposure indicator 1,2,-9.3 (00000000) UNKNOWN OLCInfo event 0x0080 content 00020000 UNKNOWN Focus Mask 00010000000008 UNKNOWN OLCInfo event mask=2c1 UNKNOWN PTP Property d1c3 changed UNKNOWN PTP Property d1bf changed UNKNOWN Button 4 UNKNOWN OLCInfo event 0x0080 content 01000000 UNKNOWN Focus Mask 00000000000800 UNKNOWN OLCInfo event mask=281 UNKNOWN Camera Status 1 UNKNOWN PTP Property d11b changed UNKNOWN PTP Property d1c3 changed UNKNOWN Button 3 UNKNOWN Focus Mask 01000000000800 UNKNOWN OLCInfo event mask=201 UNKNOWN FocusInfo eosversion=8,size=8688x5792,size2=8688x5792,points={{-435,652,283,283},{-966,652,283,283},{-1425,652,283,283},{-1860,652,283,283},{-2295,652,283,283},{435,978,283,283},{0,978,283,283},{-435,978,283,283},{-1860,326,283,283},{-2295,326,283,283},{2295,652,283,283},{1860,652,283,283},{1425,652,283,283},{966,652,283,283},{435,652,283,283},{0,652,283,283},{1860,326,283,283},{1425,326,283,283},{966,326,283,283},{435,326,283,283},{0,326,283,283},{-435,326,283,283},{-966,326,283,283},{-1425,326,283,283},{435,0,283,283},{0,0,283,283},{-435,0,283,283},{-966,0,283,283},{-1425,0,283,283},{-1860,0,283,283},{-2295,0,283,283},{2295,326,283,283},{-966,-326,283,283},{-1425,-326,283,283},{-1860,-326,283,283},{-2295,-326,283,283},{2295,0,283,283},{1860,0,283,283},{1425,0,283,283},{966,0,283,283},{-2295,-652,283,283},{2295,-326,283,283},{1860,-326,283,283},{1425,-326,283,283},{966,-326,283,283},{435,-326,283,283},{0,-326,283,283},{-435,-326,283,283},{1425,-652,283,283},{966,-652,283,283},{435,-652,283,283},{0,-652,283,283},{-435,-652,283,283},{-966,-652,283,283},{-1425,-652,283,283},{-1860,-652,283,283},{435,-978,283,283},{0,-978,283,283},{-435,-978,283,283},{2295,-652,283,283},{1860,-652,283,283}},select={},unknown={00001007004000000000000000000000ffff} Saving file as TOP_21-00-36.cr2 event found, stopping wait! t2timac1:Arduino genuser1$ gphoto2 --auto-detect Model Port

---

Canon EOS 5DS R usb:020,013
t2timac1:Arduino genuser1$ gphoto2 -v gphoto2 2.5.27

[vepicurean]

Does anyone have any suggestions on how to fix this issue?

We spent a long time investigated what we are observing, thinking it was something we were doing wrong, but we realized what was causing the wrong cameras to be triggered we attributed to how the gphoto2 trigger commend works with the USB port parameter.

[msmeissn]

i added some more error code handling, especially for fully invalid ports.

[msmeissn]

however --port usb:xxx,yyy if the combi is invalid, will still fallback to the first valid port

[msmeissn]

ok, some more code added ..

--port usb:002,007 now fails if there is only usb:002,008

lets hope i did not break any usecases relying on this lax detection ;)

[vepicurean]

Understand. Thanks. I'll try this fix on our development Mac and let you know how it goes.