Date: Fri, 21 Mar 1997 12:08:57 -0700 From: Steve Passe <smp@csn.net> To: Amancio Hasty <hasty@rah.star-gate.com> Cc: multimedia@FreeBSD.ORG Subject: Re: Changes for Audio control on the bt848 code Message-ID: <199703211908.MAA23449@Ilsa.StevesCafe.com> In-Reply-To: Your message of "Fri, 21 Mar 1997 10:42:22 PST." <199703211842.KAA00387@rah.star-gate.com>
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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
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