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Old 06-22-2015, 12:34 PM   #1
rlx
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Registered: Jul 2009
Location: Montréal
Distribution: Slackware customized
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linux-3.18 PTP camera not seen as USB device


Hi,

The problem is that my cameras are no longer seen as USB devices when I connect the USB cable to the PC and turn the camera on. I run a Slackware distro.

Gphoto2 is something that has worked for years for me. but I no longer can figure out how to make it work on a newer 3.18 kernel. I have been using a card reader instead of gphoto2 for some time, but I wished to start using gphoto2 again. But what a surprise! I can no longer make it work.

All USB devices work perfectly, but if I connect a camera either a Canon A620 or Fuji XE1, lsusb shows nothing, dmesg has no entry, /var/log/messages is also silent.

I installed libgphoto2-2.5.7 from source (as I usually do). But the problem seems to be related to the kernel or some kernel parameter I should set. I am looking for something that has changed recently. For example /proc/bus/usb has disappeared. It seems that the mount point was needed at some point by gphoto2 but I am not sure.

I would be grateful for any clue.
 
Old 06-22-2015, 01:51 PM   #2
fatmac
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Registered: Sep 2011
Location: Upper Hale, Surrey/Hants Border, UK
Distribution: Mainly Devuan with some Tiny Core, Fatdog, Haiku, & BSD thrown in.
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When you plug it in run
Code:
dmesg | tail
to see what the system thinks it is.

If it is a /dev/?, try mounting it manually.
 
Old 06-22-2015, 02:27 PM   #3
rlx
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Registered: Jul 2009
Location: Montréal
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Original Poster
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[SOLVED] linux-3.18 PTP camera not seen as USB device

Quote:
Originally Posted by fatmac View Post
When you plug it in run
Code:
dmesg | tail
to see what the system thinks it is.

If it is a /dev/?, try mounting it manually.
I didn't see anything. However it turns out the problem was a faulty USB connector. Sorry about that. With a good connector I now see the expected entries in dmesg.

Thanks.
 
  


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