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To: Denis DeLaRoca 825-4580 (310) <CSP1DWD@MVS.OAC.UCLA.EDU>
cc: multimedia@FREEBSD.ORG
Subject: Re: GUS PnP driver release 4 
In-reply-to: Your message of "Wed, 09 Oct 1996 15:48:00 PDT."
             <199610092248.PAA14958@freefall.freebsd.org> 
Date: Thu, 10 Oct 1996 03:26:17 -0700
From: Amancio Hasty <hasty@rah.star-gate.com>
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>From The Desk Of Denis DeLaRoca 825-4580 :
> On Tue, 08 Oct 1996 05:37:00 -0700,
>    Amancio Hasty <hasty@RAH.STAR-GATE.COM> said:
> >
> > 2.0	I will release another version of vat in about a day or so
> > 	after I get chance to test it further.
> 
> More testing with vat4.0b1a and guspnp4. Switching audio among
> active vats doesn't work. When you switch focus to an alternate
> vat it fails to grab the audio device and you end up with repeated
> diagnostic messages

This is due to vat in group-ip.cc not setting the local ip multicast loop
option. If you look in the code you will see 

 #ifdef ultrix
                ttl = 1;
                if (setsockopt(ssock_, IPPROTO_IP, IP_MULTICAST_LOOP,
                                &ttl, 1) < 0) {
                        perror("GroupIPC: IP_MULTICAST_LOOP");
                        exit(1);
                }
 #endif

Just change the #ifdef to 
 #if defined(ultrix) || defined(__FreeBSD__)

	Cheers,
	Amancio