From owner-freebsd-multimedia Fri Mar 21 11:09:24 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id LAA03611 for multimedia-outgoing; Fri, 21 Mar 1997 11:09:24 -0800 (PST) Received: from Ilsa.StevesCafe.com (sc-gw.StevesCafe.com [205.168.119.191]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id LAA03591 for ; Fri, 21 Mar 1997 11:09:19 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by Ilsa.StevesCafe.com (8.7.5/8.6.12) with SMTP id MAA23449; Fri, 21 Mar 1997 12:08:57 -0700 (MST) Message-Id: <199703211908.MAA23449@Ilsa.StevesCafe.com> X-Authentication-Warning: Ilsa.StevesCafe.com: Host localhost [127.0.0.1] didn't use HELO protocol X-Mailer: exmh version 1.6.5 12/11/95 From: Steve Passe To: Amancio Hasty cc: multimedia@FreeBSD.ORG Subject: Re: Changes for Audio control on the bt848 code In-reply-to: Your message of "Fri, 21 Mar 1997 10:42:22 PST." <199703211842.KAA00387@rah.star-gate.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 21 Mar 1997 12:08:57 -0700 Sender: owner-multimedia@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hi, >Looking a little bit ahead . > >1. I see the tuner code being separated by a minor device . definately. I just added Randall's Notify Event code to cause xtvremote to track changes to controls made by fxtv. Works fine, but I think it should be taken a step further. I don't know how this is traditionally done in X, so I will describe it generically. CONTROL_CLIENT: any program wanting to cooperate in the use of the picture control ioctl()s. each CONTROL_CLIENT registers itself with the kernel via an ioctl() whenever any of the picture control values change via ioctl()s each registered CONTROL_CLIENT is sent a signal by the kernel (say SIG_USR1). each CONTROL_CLIENT responds to the signal by updateing its local values. comments? -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD