From owner-freebsd-multimedia Mon Jan 17 23:19: 1 2000 Delivered-To: freebsd-multimedia@freebsd.org Received: from frodo.mgi.de (frodo.mgi.de [194.120.211.8]) by hub.freebsd.org (Postfix) with ESMTP id 5F8C915066 for ; Mon, 17 Jan 2000 23:18:52 -0800 (PST) (envelope-from Joachim.Jaeckel@mgi.de) Received: from kol9009a.mgi.de (kol9009a.mgi.de [194.120.197.9]) by frodo.mgi.de (2.5 Build 2639 (Berkeley 8.8.6)/8.8.4) with ESMTP id IAA19647 for ; Tue, 18 Jan 2000 08:17:25 +0100 Received: by kol9009a.mgi.de with Internet Mail Service (5.5.2650.21) id ; Tue, 18 Jan 2000 08:17:19 +0100 Message-ID: <25BD834C7D47D311B46F002048401A634D94F4@MGHM0219> From: Jaeckel Joachim To: "'freebsd-multimedia@freebsd.org'" Subject: something like video4linux the 2. (some thoughts...) Date: Tue, 18 Jan 2000 08:14:16 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello. It=B4s me again... ;-) Last week I wrote, that I would like to create a pseudo-device "video" = which handles the functionality which is provided by the videodev.* sources = to linux. But after a while, I couldn=B4t realize the advantages from such = a device. Because the device-driver behavior is a little bit different = than that on linux, I don=B4t think, that we need such a pseudo device, if = we code the hardware-driver itself in a video4linux compatible way. And the = user sets the link from /dev/video to /dev/whatevervideodevice itself (or = through the MAKEDEV script). The other thing is, if the system would use such a pseudo-device, = everything that is read/written to/from the hardware-device passes the kernel for = 2 times. Maybe I=B4m totally wrong, or you can correct me in any way... What would you think about it? Thanks in advance. Joachim Jaeckel. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message