When running darktable and attempting to connect to Nikon D300s camera, I get a message indicating no attached camera.
I ran gphoto2 and captured logs as described in troubleshooting part of user manual.

I don’t see any place where any other app has the USB port locked, but there does seem to be an issue here.
Any ideas?  Log file attached.

0.000005 main                        (2): ALWAYS INCLUDE THE FOLLOWING LINES 
WHEN SENDING DEBUG MESSAGES TO THE MAILING LIST:
0.000066 main                        (2): gphoto2 2.5.28
0.000076 main                        (2): gphoto2 has been compiled with the 
following options:
0.000083 main                        (2):  + clang (C compiler used)
0.000089 main                        (2):  + popt (mandatory, for handling 
command-line parameters)
0.000094 main                        (2):  + exif (for displaying EXIF 
information)
0.000099 main                        (2):  + no cdk (for accessing 
configuration options)
0.000104 main                        (2):  + no aa (for displaying live 
previews)
0.000110 main                        (2):  + jpeg (for displaying live previews 
in JPEG format)
0.000114 main                        (2):  + readline (for easy navigation in 
the shell)
0.000120 main                        (2): libgphoto2 2.5.31
0.000126 main                        (2): libgphoto2 has been compiled with the 
following options:
0.000131 main                        (2):  + standard camlib set (ax203 canon 
digigr8 dimagev directory docupen jl2005a jl2005c kodak_dc240 lumix mars pentax 
ptp2 ricoh_g3 sierra sonix sq905 st2205 topfield tp6801)
0.000136 main                        (2):  + clang (C compiler used)
0.000141 main                        (2):  + no ltdl (for portable loading of 
camlibs)
0.000146 main                        (2):  + EXIF (for special handling of EXIF 
files)
0.000151 main                        (2): libgphoto2_port 0.12.2
0.000157 main                        (2): libgphoto2_port has been compiled 
with the following options:
0.000162 main                        (2):  + iolibs: disk ptpip serial usb1
0.000167 main                        (2):  + clang (C compiler used)
0.000172 main                        (2):  + no ltdl (for portable loading of 
iolibs)
0.000177 main                        (2):  + EXIF (for vusb)
0.000182 main                        (2):  + USB (libusb1, for USB cameras)
0.000186 main                        (2):  + serial (for serial cameras)
0.000191 main                        (2):  + no resmgr (serial port access and 
locking)
0.000196 main                        (2):  + no ttylock (serial port locking)
0.000201 main                        (2):  + no lockdev (serial port locking)
0.000206 main                        (2): CAMLIBS env var not set, using 
compile-time default instead
0.000211 main                        (2): IOLIBS env var not set, using 
compile-time default instead
0.000215 main                        (2): invoked with following arguments:
0.000220 main                        (2):   --debug
0.000225 main                        (2):   --debug-logfile=my-logfile.txt
0.000230 main                        (2):   --port
0.000234 main                        (2):   usb:
0.000239 main                        (2):   --capture-image-and-download
0.000254 main                        (2): Processing 'port' option ('usb:')...
0.000263 gp_port_init_localedir      (2): localedir has been set to 
/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/share/locale (compile-time default)
0.000269 gp_port_info_list_load      (2): Using ltdl to load io-drivers from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2'...
0.000355 foreach_func                (2): Called for filename 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/disk'.
0.000870 foreach_func                (2): Loaded '' ('^disk:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/disk'.
0.000881 foreach_func                (2): Called for filename 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/ptpip'.
0.001337 foreach_func                (2): Loaded 'PTP/IP Connection' ('ptpip:') 
from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/ptpip'.
0.001346 foreach_func                (2): Loaded '' ('^ptpip:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/ptpip'.
0.001351 foreach_func                (2): Loaded 'IP Connection' ('ip:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/ptpip'.
0.001376 foreach_func                (2): Loaded '' ('^ip:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/ptpip'.
0.001380 foreach_func                (2): Called for filename 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/serial'.
0.004962 foreach_func                (2): Loaded 'Serial Port Device' 
('serial:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/serial'.
0.004971 foreach_func                (2): Loaded '' ('^serial:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/serial'.
0.004975 foreach_func                (2): Called for filename 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/usb1'.
0.010143 foreach_func                (2): Loaded '' ('^usb:') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/usb1'.
0.010156 foreach_func                (2): Loaded 'Universal Serial Bus' 
('usb:002,003') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/usb1'.
0.010161 foreach_func                (2): Loaded 'Universal Serial Bus' 
('usb:000,001') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/usb1'.
0.010165 foreach_func                (2): Loaded 'Universal Serial Bus' 
('usb:000,005') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/usb1'.
0.010168 foreach_func                (2): Loaded 'Universal Serial Bus' 
('usb:000,004') from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2_port/0.12.2/usb1'.
0.010174 gp_port_info_list_count     (2): Counting entries (12 available)...
0.010177 gp_port_info_list_count     (2): 7 regular entries available.
0.010181 gp_port_info_list_lookup_path(2): Looking for path 'usb:' (12 entries 
available)...
0.010184 gp_port_info_list_lookup_path(2): Starting regex search for 'usb:'...
0.010188 gp_port_info_list_lookup_path(2): Trying '^disk:'...
0.010211 gp_port_info_list_lookup_path(2): regexec failed
0.010215 gp_port_info_list_lookup_path(2): Trying '^ptpip:'...
0.010227 gp_port_info_list_lookup_path(2): regexec failed
0.010231 gp_port_info_list_lookup_path(2): Trying '^ip:'...
0.010239 gp_port_info_list_lookup_path(2): regexec failed
0.010243 gp_port_info_list_lookup_path(2): Trying '^serial:'...
0.010258 gp_port_info_list_lookup_path(2): regexec failed
0.010263 gp_port_info_list_lookup_path(2): Trying '^usb:'...
0.010275 gp_port_info_list_get_info  (2): Getting info of entry 7 (13 
available)...
0.010281 gp_camera_set_port_info     (2): Setting port info for port 'Generic 
Port' at 'usb:'...
0.012065 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.012076 gp_port_set_settings        (2): Setting settings...
0.012082 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:, (new int=0, conf=-1, alt=-1) port usb:
0.012086 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.012091 load_settings               (2): Creating gphoto config directory 
('/Users/davidmaclennan/.gphoto')
0.012141 load_settings               (2): Loading settings from file 
'/Users/davidmaclennan/.gphoto/settings'.
0.012165 gp_setting_set              (2): Setting key 'port' to value 'usb:' 
(gphoto2)
0.012171 save_settings               (2): Saving 2 setting(s) to file 
"/Users/davidmaclennan/.gphoto/settings"
0.012357 main                        (2): The user has not specified both a 
model and a port. Try to figure them out.
0.012363 gp_port_init_localedir      (2): ignoring late call (localedir value 
NULL)
0.012368 gp_init_localedir           (2): localedir has been set to 
/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/share/locale (compile-time default)
0.012372 unlocked_gp_abilities_list_load_dir(2): Using ltdl to load camera 
libraries from 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31'...
0.012446 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/ax203'.
0.012457 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/canon'.
0.012460 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/digigr8'.
0.012463 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/dimagev'.
0.012466 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/directory'.
0.012469 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/docupen'.
0.012473 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/jl2005a'.
0.012475 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/jl2005c'.
0.012478 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/kodak_dc240'.
0.012481 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/lumix'.
0.012484 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/mars'.
0.012486 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/pentax'.
0.012489 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/ptp2'.
0.012492 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/ricoh_g3'.
0.012495 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/sierra'.
0.012498 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/sonix'.
0.012500 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/sq905'.
0.012503 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/st2205'.
0.012506 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/topfield'.
0.012508 foreach_func                (2): Found 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/tp6801'.
0.012512 unlocked_gp_abilities_list_load_dir(2): Found 20 camera drivers.
0.039947 gp_port_info_list_count     (2): Counting entries (13 available)...
0.039956 gp_port_info_list_count     (2): 8 regular entries available.
0.039959 gp_port_new                 (2): Creating new device...
0.039962 gp_port_info_list_get_info  (2): Getting info of entry 0 (13 
available)...
0.040167 gp_port_set_settings        (2): Setting settings...
0.040172 gp_port_info_list_get_info  (2): Getting info of entry 1 (13 
available)...
0.040414 gp_port_set_settings        (2): Setting settings...
0.040418 gp_port_info_list_get_info  (2): Getting info of entry 2 (13 
available)...
0.040748 gp_port_set_timeout         (2): Setting port timeout to 500 
milliseconds.
0.040751 gp_port_set_settings        (2): Setting settings...
0.040753 gp_port_info_list_get_info  (2): Getting info of entry 3 (13 
available)...
0.041128 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.041132 gp_port_set_settings        (2): Setting settings...
0.041135 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:002,003, (new int=0, conf=-1, alt=-1) port usb:002,003
0.041138 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.041140 gp_abilities_list_detect_usb(2): Auto-detecting USB cameras...
0.041322 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.041341 gp_libusb1_find_device_lib  (2): Looking for USB device (vendor 0x4b0, 
product 0x425)... found.
0.041348 gp_libusb1_find_device_lib  (2): Detected defaults: config 1, 
interface 0, altsetting 0, inep 81, outep 02, intep 83, class 06, subclass 01
0.041360 gp_abilities_list_detect_usb(2): Found 'Nikon DSC D300s (PTP mode)' 
(0x4b0,0x425)
0.041363 gp_port_info_list_get_info  (2): Getting info of entry 4 (13 
available)...
0.041618 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.041621 gp_port_set_settings        (2): Setting settings...
0.041624 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:000,001, (new int=0, conf=-1, alt=-1) port usb:000,001
0.041626 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.041628 gp_abilities_list_detect_usb(2): Auto-detecting USB cameras...
0.041795 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.041798 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.041945 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x6, subclass, 0x1, protocol 0x1)...
0.041948 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x6, subclass, 0x1, protocol 0x1)...
0.041959 gp_port_info_list_get_info  (2): Getting info of entry 5 (13 
available)...
0.042218 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.042221 gp_port_set_settings        (2): Setting settings...
0.042223 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:000,005, (new int=0, conf=-1, alt=-1) port usb:000,005
0.042225 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.042227 gp_abilities_list_detect_usb(2): Auto-detecting USB cameras...
0.042393 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.042520 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x6, subclass, 0x1, protocol 0x1)...
0.042532 gp_port_info_list_get_info  (2): Getting info of entry 6 (13 
available)...
0.042777 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.042780 gp_port_set_settings        (2): Setting settings...
0.042783 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:000,004, (new int=0, conf=-1, alt=-1) port usb:000,004
0.042785 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.042787 gp_abilities_list_detect_usb(2): Auto-detecting USB cameras...
0.042951 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043076 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x6, subclass, 0x1, protocol 0x1)...
0.043085 gp_port_info_list_get_info  (2): Getting info of entry 7 (13 
available)...
0.043337 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.043340 gp_port_set_settings        (2): Setting settings...
0.043343 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:, (new int=0, conf=-1, alt=-1) port usb:
0.043345 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.043346 gp_abilities_list_detect_usb(2): Auto-detecting USB cameras...
0.043424 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043426 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043428 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043430 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043432 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043434 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043443 gp_libusb1_find_device_by_class_lib(2): Looking for USB device (class 
0x29a, subclass, 0xffffffff, protocol 0xffffffff)...
0.043452 gp_libusb1_find_device_lib  (2): Looking for USB device (vendor 0x4b0, 
product 0x425)... found.
0.043456 gp_libusb1_find_device_lib  (2): Detected defaults: config 1, 
interface 0, altsetting 0, inep 81, outep 02, intep 83, class 06, subclass 01
0.043459 gp_abilities_list_detect_usb(2): Found 'Nikon DSC D300s (PTP mode)' 
(0x4b0,0x425)
0.043461 gp_port_free                (2): Freeing port...
0.043463 gp_port_close               (2): Closing port...
0.043467 gphoto2                     (2): Looking for port ...

0.043470 gphoto2                     (2): info.type = 4

0.043472 gphoto2                     (2): info.name = Generic Port

0.043474 gphoto2                     (2): info.path = usb:

0.043487 gp_camera_set_abilities     (2): Setting abilities ('Nikon DSC D300s 
(PTP mode)')...
0.043490 gp_setting_set              (2): Setting key 'model' to value 'Nikon 
DSC D300s (PTP mode)' (gphoto2)
0.043493 save_settings               (2): Saving 2 setting(s) to file 
"/Users/davidmaclennan/.gphoto/settings"
0.043579 gp_port_info_list_lookup_path(2): Looking for path 'usb:' (13 entries 
available)...
0.043586 gp_port_info_list_get_info  (2): Getting info of entry 7 (13 
available)...
0.043588 gp_camera_set_port_info     (2): Setting port info for port 'Generic 
Port' at 'usb:'...
0.045145 gp_port_set_timeout         (2): Setting port timeout to 5000 
milliseconds.
0.045151 gp_port_set_settings        (2): Setting settings...
0.045155 gp_libusb1_update           (2): (old int=0, conf=-1, alt=-1) port 
usb:, (new int=0, conf=-1, alt=-1) port usb:
0.045157 gp_libusb1_update           (2): lowlevel libusb1 port not yet opened, 
no need for libusb changes
0.045160 gp_setting_set              (2): Setting key 'port' to value 'usb:' 
(gphoto2)
0.045163 save_settings               (2): Saving 2 setting(s) to file 
"/Users/davidmaclennan/.gphoto/settings"
0.045243 gphoto2                     (2): found port, was entry 1

0.045264 gp_camera_init              (2): Initializing camera...
0.045276 gp_libusb1_find_device_lib  (2): Looking for USB device (vendor 0x4b0, 
product 0x425)... found.
0.045282 gp_libusb1_find_device_lib  (2): Detected defaults: config 1, 
interface 0, altsetting 0, inep 81, outep 02, intep 83, class 06, subclass 01
0.045284 gp_camera_init              (2): Loading 
'/usr/local/Homebrew/Cellar/libgphoto2/2.5.31/lib/libgphoto2/2.5.31/ptp2'...
0.045785 gp_port_open                (2): Opening USB port...
0.045789 gp_libusb1_open             (2): ()
0.045850 gp_libusb1_open             (2): Device has a kernel driver attached 
(1), detaching it now.
0.045869 gp_port_set_error [gphoto2-port.c:1190](0): Could not detach kernel 
driver of camera device.
0.045872 gp_libusb1_open             (2): claiming interface 0
0.046003 gp_libusb1_open [libusb1.c:415](0): 'libusb_claim_interface 
(port->pl->dh, port->settings.usb.interface)' failed: Access denied 
(insufficient permissions) (-3)
0.046009 gp_port_set_error [gphoto2-port.c:1190](0): Could not claim interface 
0 (No such file or directory). Make sure no other program (MacOS PTPCamera 
service) or kernel module (such as sdc2xx, stv680, spca50x) is using the device 
and you have read/write access to the device.
0.046081 gp_context_error            (0): An error occurred in the io-library 
('Could not claim the USB device'): Could not claim interface 0 (No such file 
or directory). Make sure no other program (MacOS PTPCamera service) or kernel 
module (such as sdc2xx, stv680, spca50x) is using the device and you have 
read/write access to the device.
0.046154 gp_camera_free              (2): Freeing camera...
0.046157 gp_port_free                (2): Freeing port...
0.046159 gp_port_close               (2): Closing port...
0.047350 gp_port_set_error [gphoto2-port.c:1190](0): Could not release 
interface 0 (No such file or directory).
0.047762 gp_filesystem_reset         (2): resetting filesystem
0.047772 gp_filesystem_lru_clear     (2): Clearing fscache LRU list...
0.047775 gp_filesystem_lru_clear     (2): fscache LRU list already empty
0.047777 delete_all_folders          (2): Internally deleting all folders from 
'/'...
0.047781 lookup_folder               (2): Lookup folder '/'...
0.047783 lookup_folder               (2): Found! / is 0x600003be87b0
0.047786 recurse_delete_folder       (2): Recurse delete folder 0x600003be87b0//
0.047788 delete_all_files            (2): Delete all files in folder 
0x600003be87b0//



davidmaclennan@Davids-2023-Mac-mini ~ % env LANG=C gphoto2 --port usb: --abilities                                                            

Abilities for camera             : Nikon DSC D300s (PTP mode)                  

Serial port support              : no

USB support                      : yes

Capture choices                  :

                                 : Image

                                 : Preview

                                 : Trigger Capture

Configuration support            : yes

Delete selected files on camera  : yes

Delete all files on camera       : no

File preview (thumbnail) support : yes

File upload support              : no

davidmaclennan@Davids-2023-Mac-mini ~ % env LANG=C gphoto2 --port usb: --capture-image-and-download

                                                                               

*** Error ***              

An error occurred in the io-library ('Could not claim the USB device'): Could not claim interface 0 (No such file or directory). Make sure no other program (MacOS PTPCamera service) or kernel module (such as sdc2xx, stv680, spca50x) is using the device and you have read/write access to the device.

ERROR: Could not capture image.

ERROR: Could not capture.

*** Error (-53: 'Could not claim the USB device') ***       


For debugging messages, please use the --debug option.

Debugging messages may help finding a solution to your problem.

If you intend to send any error or debug messages to the gphoto

developer mailing list <gphoto-devel@lists.sourceforge.net>, please run

gphoto2 as follows:


    env LANG=C gphoto2 --debug --debug-logfile=my-logfile.txt --port usb: --capture-image-and-download


Please make sure there is sufficient quoting around the arguments.


davidmaclennan@Davids-2023-Mac-mini ~ % 


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