View source for Webcam Test Ubuntu Focal 20210318

For Ubuntu 20.04

= Cheese =

== References ==

* [https://linuxconfig.org/how-to-test-webcam-on-ubuntu-20-04-focal-fossa How to Test Webcam on Ubuntu 20.02 Focal Fossa]

== Test ==

Plug in a Logitech C270 camera

  $ dmesg | grep -i "Camera"
      [  245.857696] input: UVC Camera (046d:0825) as /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4:1.0/input/input12
 
  $ ls -ltrh /dev/video*
      crw-rw----+ 1 root video 81, 0 Mar 18 17:10 /dev/video0
      crw-rw----+ 1 root video 81, 1 Mar 18 17:10 /dev/video1
 
  $ cheese 

[[File: ScreenshotCheese20210507.png | 300px]]

  $ lsusb
      Bus 001 Device 002: ID 8087:8000 Intel Corp. 
      Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 003 Device 002: ID 05e3:0617 Genesys Logic, Inc. USB3.0 Hub
      Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
      Bus 002 Device 008: ID 8087:07dc Intel Corp. 
      Bus 002 Device 007: ID 046d:0825 Logitech, Inc. Webcam C270
      Bus 002 Device 005: ID 10c4:ea60 Silicon Labs CP210x UART Bridge
      Bus 002 Device 003: ID 0483:5740 STMicroelectronics Virtual COM Port
      Bus 002 Device 006: ID 413c:3200 Dell Computer Corp. Mouse
      Bus 002 Device 004: ID f617:0905 Silicon Labs CP2102 USB to UART Bridge Controller
      Bus 002 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
      Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 
  $ lsusb -s 2:7 -v
 
      Bus 002 Device 007: ID 046d:0825 Logitech, Inc. Webcam C270
      Couldn't open device, some information will be missing
      Device Descriptor:
        bLength                18
        bDescriptorType         1
        bcdUSB               2.00
        bDeviceClass          239 Miscellaneous Device
        bDeviceSubClass         2 
        bDeviceProtocol         1 Interface Association
        bMaxPacketSize0        64
        idVendor           0x046d Logitech, Inc.
        idProduct          0x0825 Webcam C270
        bcdDevice            0.12
        iManufacturer           0 
        iProduct                0 
        iSerial                 2 
  ...
  ...

May be of interest

  $ guvcview
 
      Command 'guvcview' not found

= Notes and Logs =

* [[Webcam Foxy 20210322 Notes and Logs]]

= ROS 1 Pages on Floor Hugger running Indigo =

* [[Floor_Hugger_ROS_1_Indigo#OpenCV_and_Test]]
* [[Floor_Hugger_ROS_1_Indigo#OpenCV_in_ROS]]
* [[Webcam Test]] ??
* [[Usb cam]] ??
* [[Building a Webcam Display]] ??