Yeah you’ve got it. You’ve got to install “libusb” beforehand. Maybe
something like libusb-dev depending on your distro.

On Sat, Nov 10, 2018 at 9:53 AM Horshack ?? <horsh...@live.com> wrote:

> Hi,
>
> I can successfully connect to USB cameras using gphoto2 with libgphoto2
> v2.5.9.
>
> However if I build and install libgphoto2 from the current source
> (v2.5.20.1), I can no longer connect to USB cameras, because the USB ports
> don't show up in the list of ports.
>
> Here's the output of --list-ports using v2.5.9 (working case):
>
> root@ubuntu:/# gphoto2 --list-ports
> Devices found: 35
> Path                             Description
> --------------------------------------------------------------
> ptpip:                           PTP/IP Connection
> serial:/dev/ttyS0                Serial Port 0
> serial:/dev/ttyS1                Serial Port 1
> serial:/dev/ttyS2                Serial Port 2
> serial:/dev/ttyS3                Serial Port 3
> serial:/dev/ttyS4                Serial Port 4
> serial:/dev/ttyS5                Serial Port 5
> serial:/dev/ttyS6                Serial Port 6
> serial:/dev/ttyS7                Serial Port 7
> serial:/dev/ttyS8                Serial Port 8
> serial:/dev/ttyS9                Serial Port 9
> serial:/dev/ttyS10               Serial Port 10
> serial:/dev/ttyS11               Serial Port 11
> serial:/dev/ttyS12               Serial Port 12
> serial:/dev/ttyS13               Serial Port 13
> serial:/dev/ttyS14               Serial Port 14
> serial:/dev/ttyS15               Serial Port 15
> serial:/dev/ttyS16               Serial Port 16
> serial:/dev/ttyS17               Serial Port 17
> serial:/dev/ttyS18               Serial Port 18
> serial:/dev/ttyS19               Serial Port 19
> serial:/dev/ttyS20               Serial Port 20
> serial:/dev/ttyS21               Serial Port 21
> serial:/dev/ttyS22               Serial Port 22
> serial:/dev/ttyS23               Serial Port 23
> serial:/dev/ttyS24               Serial Port 24
> serial:/dev/ttyS25               Serial Port 25
> serial:/dev/ttyS26               Serial Port 26
> serial:/dev/ttyS27               Serial Port 27
> serial:/dev/ttyS28               Serial Port 28
> serial:/dev/ttyS29               Serial Port 29
> serial:/dev/ttyS30               Serial Port 30
> serial:/dev/ttyS31               Serial Port 31
> usb:001,003                      Universal Serial Bus
> usb:002,004                      Universal Serial Bus
>
> Here's the output of --list-ports using v2.5.20.1 libgphoto2 I built (USB
> ports not listed):
> root@ubuntu:/# gphoto2 --list-ports
> Devices found: 34
> Path                             Description
> --------------------------------------------------------------
> ptpip:                           PTP/IP Connection
> serial:/dev/ttyS0                Serial Port 0
> serial:/dev/ttyS1                Serial Port 1
> serial:/dev/ttyS2                Serial Port 2
> serial:/dev/ttyS3                Serial Port 3
> serial:/dev/ttyS4                Serial Port 4
> serial:/dev/ttyS5                Serial Port 5
> serial:/dev/ttyS6                Serial Port 6
> serial:/dev/ttyS7                Serial Port 7
> serial:/dev/ttyS8                Serial Port 8
> serial:/dev/ttyS9                Serial Port 9
> serial:/dev/ttyS10               Serial Port 10
> serial:/dev/ttyS11               Serial Port 11
> serial:/dev/ttyS12               Serial Port 12
> serial:/dev/ttyS13               Serial Port 13
> serial:/dev/ttyS14               Serial Port 14
> serial:/dev/ttyS15               Serial Port 15
> serial:/dev/ttyS16               Serial Port 16
> serial:/dev/ttyS17               Serial Port 17
> serial:/dev/ttyS18               Serial Port 18
> serial:/dev/ttyS19               Serial Port 19
> serial:/dev/ttyS20               Serial Port 20
> serial:/dev/ttyS21               Serial Port 21
> serial:/dev/ttyS22               Serial Port 22
> serial:/dev/ttyS23               Serial Port 23
> serial:/dev/ttyS24               Serial Port 24
> serial:/dev/ttyS25               Serial Port 25
> serial:/dev/ttyS26               Serial Port 26
> serial:/dev/ttyS27               Serial Port 27
> serial:/dev/ttyS28               Serial Port 28
> serial:/dev/ttyS29               Serial Port 29
> serial:/dev/ttyS30               Serial Port 30
> serial:/dev/ttyS31               Serial Port 31
> serial:                          Serial Port Device
>
> Is there something I need to do for the newly-built libgphoto2 to have
> recognize the USB ports?
>
> Thanks!
>
> Adam
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