From owner-freebsd-multimedia Thu Apr 4 01:49:01 1996 Return-Path: owner-multimedia Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id BAA16468 for multimedia-outgoing; Thu, 4 Apr 1996 01:49:01 -0800 (PST) Received: from mail.rwth-aachen.de (mail.RWTH-Aachen.DE [137.226.144.9]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id BAA16445 for ; Thu, 4 Apr 1996 01:48:55 -0800 (PST) Received: from gilberto.physik.rwth-aachen.de (gilberto.physik.rwth-aachen.de) by mail.rwth-aachen.de (PMDF V5.0-4 #13110) id <01I3557SH0V400070J@mail.rwth-aachen.de> for multimedia@freebsd.org; Thu, 04 Apr 1996 11:47:15 +0100 Received: (from kuku@localhost) by gilberto.physik.rwth-aachen.de (8.6.11/8.6.9) id LAA17387 for multimedia@freebsd.org; Thu, 04 Apr 1996 11:53:42 +0200 Date: Thu, 04 Apr 1996 11:53:42 +0200 From: "Christoph P. Kukulies" Subject: quickcam - how is it read out? To: multimedia@freebsd.org Message-id: <199604040953.LAA17387@gilberto.physik.rwth-aachen.de> Content-transfer-encoding: 7BIT Sender: owner-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I didn't want to join the reverse engineering project just to get an answer on this question: How is the quickcam being read out into the machine? Is it a byte at a time through the parallel port? Or is it via a strobe pin by means of a serial coding technique? Does it produce interrupts? I'm wondering why - at least in the Win95 version (cuseeme or quickmovie) - it hogs the CPU terribly. Also the frame rate still seems to leave desires. --Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de