What is the issue of /dev/video0 not showing up?

[robograffitti]

I finally could get ps4eye launched. However, I struggled with the issue of not getting /dev/video0. The original repository tells us to blacklist uvc things, but it doesn't work.

Instead, I installed some of the uvc packages from the list below, shown by apt-cache search uvc: y-tanaka@y-tanaka-W541:~/ros/hydro/src/ps4eye$ apt-cache search uvc guvcview - GTK+ base UVC Viewer uvccapture - USB UVC Video Class snapshot software uvcdynctrl - Command line tool to control v4l2 devices uvcdynctrl-data - Command line tool to control v4l2 devices - data files uvcdynctrl-dbg - Debug Symbols for uvcdynctrl luvcview - USB Video クラスキャプチャ ros-hydro-libuvc - USB Video Class driver library ros-hydro-libuvc-camera - USB Video Class camera driver ros-hydro-libuvc-ros - libuvc_ros metapackage ros-hydro-uvc-camera - A collection of node(let)s that stream images from USB cameras (UVC) and provide CameraInfo messages to consumers. Includes a two-camera node that provides rough synchronization for stereo vision. Currently uses the base driver from Morgan Quigley's uvc_cam package

In my memory, I installed guvcview, uvcapture, luvcview, ros-hydro-libuvc-*, and ros-hydro-uvc-camera. Which one is really necessary for ps4eye? If it's known, it should be written in the READ.md.

[longjie]

Thank you, we need to write correct dependency in package.xml. ps4eye uses gstreamer framework, so I guess ros-hydro-gscam is the correct dependency.

Beware gscam is not released for indigo, that's why ps4eye package have not released in indigo.

[longjie]

Don't you have any /dev/video* file? If so, the package dependency may not be the reason.

Please check:

• The kernel version (> 3.17) and the camera connected to the USB 3.0 port
• check the system can detect the USB device(05a9:058a or 05a9:0580). Do:

$ lsusb

If you don't see any USB devices on the bus when you pluged the camera, the reason would be hardware(soldering) or USB 3.0 driver.

Sometimes I encounterd that I need to plug and unplug serveral times before the system recognize the device.

Good luck,