From owner-freebsd-multimedia Tue Nov 4 11:39:53 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id LAA01743 for multimedia-outgoing; Tue, 4 Nov 1997 11:39:53 -0800 (PST) (envelope-from owner-freebsd-multimedia) Received: from gaia.coppe.ufrj.br ([146.164.5.200]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id LAA01735 for ; Tue, 4 Nov 1997 11:39:47 -0800 (PST) (envelope-from jonny@coppe.ufrj.br) Received: (from jonny@localhost) by gaia.coppe.ufrj.br (8.8.7/8.8.7) id RAA26899; Tue, 4 Nov 1997 17:38:44 -0200 (EDT) (envelope-from jonny) From: Joao Carlos Mendes Luis Message-Id: <199711041938.RAA26899@gaia.coppe.ufrj.br> Subject: Re: A small addition to the bt848 driver... In-Reply-To: <199711040831.AAA00548@rah.star-gate.com> from Amancio Hasty at "Nov 4, 97 00:31:19 am" To: hasty@rah.star-gate.com (Amancio Hasty) Date: Tue, 4 Nov 1997 17:38:44 -0200 (EDT) Cc: luigi@labinfo.iet.unipi.it, multimedia@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-multimedia@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk #define quoting(Amancio Hasty) // > precisely my point (however maybe something could be done in the // > driver to check at least that the "video.addr" does not point to // > pages of non-video RAM). // // Nope I rather keep this way for the purpose of future usage like dumping // video straight to a memory mapped region of a device other than // a video card. BTW: Is it already possible to mmap a file, and force the bktr driver to capture images direct to that file ? I think it's not easy, mostly because of paging boundaries, but the idea cativats me: Video direct from board to disk. :) Jonny -- Joao Carlos Mendes Luis jonny@gta.ufrj.br +55 21 290-4698 jonny@coppe.ufrj.br Universidade Federal do Rio de Janeiro UFRJ/COPPE/CISI PGP fingerprint: 29 C0 50 B9 B6 3E 58 F2 83 5F E3 26 BF 0F EA 67