Motion webcam two webcams change order on boot /dev/video0 persistent linux ubuntu

Copied from various resources on the web, Original Reference Here

When using Motion http://www.lavrsen.dk/foswiki/bin/view/Motion with multiple usb webcams, sometimes the dev order of the webcams changes on reboot of a machine. 

i.e.  /dev/video0 becomes dev/video1

This can seriously stuff things up.  To overcome this, create a udev rule to lock/assign a device dev location.

First do a lsusb, notice that I have two webcams, one is built into the screen and the other is USB connected.

Take note of the ID of the webcam you want
i.e 045e:00f7

Now do a:
sudo touch /etc/udev/rules.d/25-name-video-devices.rules

Edit this file and enter the following:

SUBSYSTEM=="video4linux", BUS=="usb", SYSFS{idVendor}=="045e", SYSFS{idProduct}=="00f7", NAME="video5"

I assigned the webcam to give a default location of /dev/video5 so it would never conflict with other webcams fitted in the future (hopefully)

Don’t forget to modify your ~/.motion/motion.conf file and change the video device to /dev/video5

What happens if you have two webcams and they are both the same?  Fuuuuuuuuuuuuuuuuu!!!!!!!!!!!!!!!

WindyCityTech Blogger
WindyWindyCityTech WordPress

CHOGM temporary security Cameras Hyatt Hotel

According to this article the Hyatt hotel is housing many CHOGM members.

There has been a lot of construction work going on there as well, including the installation of these wireless video cameras on street light poles.

Interesting, the cameras are powered by the street post supply, and have a wireless video link back to the Hyatt Center.  There is also temporary scaffolding erected on the roof to accommodate the receiving antennas.

Close inspection of the security cameras revels WA Police asset tags on them.

The locations of the cameras are:

  • Plain Street / Adelaide Terrace – East Side of the intersection
  • Construction site on Plain Street – Ex location of Plain Street Deli
  • Corner of Plain / Terrace Road – South side of the intersection
  • Terrace road – two locations on sidewalk

Total of six cameras

WindyCityTech Blogger
WindyWindyCityTech WordPress

Protect your identy from hackers on your webcam laptop

My laptop (Acer 5742) has a built-in webcam, however unlike my last laptop there is no operation LED and way of knowing if it is on or not.  Just in case someone did get into my system from outside and manage to switch on the webcam, I have constructed a tertiary level of protection just by using a piece of black tape.

Get a length of tape 2 inches long, fold one third over itself, stick side to sticky side.  Then mount it on the laptops webcam.

If you ever need to use the webcam, just fold the cover back.

Protect your identy from hackers on your webcam laptop

My laptop (Acer 5742) has a built-in webcam, however unlike my last laptop there is no operation LED and way of knowing if it is on or not.  Just in case someone did get into my system from outside and manage to switch on the webcam, I have constructed a tertiary level of protection just by using a piece of black tape.

Get a length of tape 2 inches long, fold one third over itself, stick side to sticky side.  Then mount it on the laptops webcam.

If you ever need to use the webcam, just fold the cover back.