Using Kubuntu.

When I connect my Camera to the system through an usb cable, a prompt will be shown at the right bottom corner:

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After clicking "Open with File Manager":

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Dolphin opens with the path to be camera:/.

What's the meaning of camera:/ here and how does Kubuntu handle my camera here?


The 'camera:/' is a KDE kio/kio-slave/protocol. More:



KIO (acronym of KDE Input/Output) is system library incorporated into KDE Frameworks 5 and KDE Software Compilation 4. It provides access to files, web sites and other resources through a single consistent API. Applications, such as Konqueror and Dolphin,...



This device interface is available on digital camera devices.

A digital camera is a device used to transform images into data. Nowaday most digital cameras are multifunctional and able to take photographs, video or sound. On the system side they are a particular type of device holding data, the access method can be different from the typical storage device


Open konqueror, enter camera:/ into the URL bar. You can then select the camera (USB cameras are autodetected) and descend into the camera filesystem like any other UNIX directory.


The linux kernel provides drivers that you can use in order to read/write/use various devices.

Unlike Windows that creates a drive for hard drivers/cdroms/flash drives etc, linux creates a file with a set of instructions that allow you to access that device. That file is located in /dev/ and the process by witch you access it is called mounting

So you plug in the camera, the system detects it and it creates that file in /dev/ that you need to mount in order to access. Ubuntu usually auto-mounts the devices for you, and that is probably what you are experiencing there. The usual mount point for devices is in /media/ or /mnt/ depending on the linux distribution (for ubuntu it's /media/).

You can manually mount and unmount devices using the terminal (ctrl+alt+t) and executing the mount and umount commands which you can use the --help attributes on, read their manual pages using man mount and man umount or google about them.

You should read a little about the linux file system in order to understand how it does all this and how handy it becomes when you need to expand a folder size or create logical volumes.

  • But, what's the meaning of 'camera:/' here? – Yishu Fang Aug 12 '14 at 16:16
  • it's basically a link for you to access what is stored on that device. – iffy Aug 12 '14 at 16:21

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