Logitech web cam and UVC, V4L2, Pygame, OpenCV etc

Now I have skimmed through some pages about UVC, V4L2, and confirmed the following.

1. C270, Quickcam Sphere AF are supported by UVC
2. C910 is supported, but not sure about C920

Pygame and OpenCV support V4L2.



Linux UVC driver and tools Supported devices

http://www.ideasonboard.org/uvc/

The following table lists the UVC features supported by the Linux UVC driver.

UVC Feature Status Comments

Camera input terminal Yes
USB Streaming terminal Yes
Extension units can be accessed directly or mapped to V4L2 controls. They require a user-space management tool.
Still image capture No
Video streaming Yes

046d:0825 Logitech HD Webcam C270
046d:0826 Logitech HD Webcam C525
046d:0821 Logitech Portable Webcam C910
046d:0994 Logitech Quickcam Sphere AF


Identifying Your Webcam

Although webcams may look quite different from one another, they often share similar or identical major components. This means that drivers may work for many different makes and models with little or no modification.

To definitively identify your webcam, the following information will be of use:

Make and Model Name/Number.

Any version or revision information. This is often printed on the device or its packaging and will read something similar to REV 01 or VER. 2.2. This information can be particularly useful.

The output of the lsusb. Type lsusb -v into a terminal window.

This program prints information about the devices connected to the USB bus. If you scroll through it, you should find some information about your webcam.

Type lsusb -n into a terminal window. This version of the command lists the device's USB ID; a number that is unique to every device.


Video4Linux From Wikipedia

https://en.wikipedia.org/wiki/Video4Linux

Video4Linux or V4L is a video capture application programming interface for Linux, supporting many USB webcams ...

V4L2

V4L2 is the second version of V4L. ...

Software supporting Video4Linux

...

OpenCV

PyGame

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