webcams in Linux - Revision history

Woozle: Reverted edits by 59.151.53.100 (Talk); changed back to last version by Woozle

2007-10-12T00:39:28Z

Reverted edits by 59.151.53.100 (Talk); changed back to last version by Woozle

← Older revision		Revision as of 00:39, 12 October 2007
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	~~reloloac~~
	{{seed}}		{{seed}}
	==Introduction==		==Introduction==

59.151.53.100 at 22:36, 11 October 2007

2007-10-11T22:36:49Z

← Older revision		Revision as of 22:36, 11 October 2007
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			reloloac
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	==Introduction==		==Introduction==

Woozle: Webcams in Linux moved to webcams in Linux

2006-09-12T22:24:38Z

Webcams in Linux moved to webcams in Linux

← Older revision	Revision as of 22:24, 12 September 2006
(No difference)

Woozle: /* Introduction */ icm532

2005-11-16T19:09:42Z

Introduction: icm532

← Older revision		Revision as of 19:09, 16 November 2005
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	==Introduction==		==Introduction==
	Webcam support under [[Linux]] appears to be iffy at this point (2005-10-30). There was substantial support for hardware from Philips, but it has been discontinued due to a number of factors (see Philips Drivers below).		Webcam support under [[Linux]] appears to be iffy at this point (2005-10-30). There was substantial support for hardware from Philips, but it has been discontinued due to a number of factors (see Philips Drivers below).
			==EZonics/IC-Media==
			* [http://icm532.sourceforge.net/ ICM532a] driver ([http://icm532.sourceforge.net/ IC-Media])

	==Logitech Webcams==		==Logitech Webcams==
	http://www.seismo.ethz.ch/linux/webcam.html		http://www.seismo.ethz.ch/linux/webcam.html

Woozle at 21:17, 30 October 2005

2005-10-30T21:17:26Z

New page

{{seed}}
==Introduction==
Webcam support under [[Linux]] appears to be iffy at this point (2005-10-30). There was substantial support for hardware from Philips, but it has been discontinued due to a number of factors (see Philips Drivers below).
==Logitech Webcams==
http://www.seismo.ethz.ch/linux/webcam.html
==Philips Webcams==
PWC is a (the only?) [[open-source]] Linux driver for [[Philips]] webcams, but the author has discontinued support.

Apparently the author of PWC (who had obtained the necessary specs from Philips under a [[NDA]]) felt it necessary to have a [[hook (programming)|hook]] installed in the [[Linux kernel]] in order to properly support PWCX, a binary-only driver which allowed the PWC driver to work better (the technical reasons for doing so may have been good, but I have not been able to find any description or discussion on this). The code in PWCX is apparently proprietary and thus could not be included in Linux distributions due to [[license conflict]].

Although PWC, complete with hook, had been part of the Linux kernel for over 3 years, apparently the maintainers of the kernel ultimately decided they no longer wanted "to allow any kind of hook or function or mechanism, specifically written to make it possible to load a binary-only module", so they removed the hook code from PWC but left it otherwise unaltered &ndsah; unfortunately removing the ability to use PWCX and therefore also removing the enhanced support.

Source: http://www.smcc.demon.nl/webcam/