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To: Steve Passe <smp@csn.net>
cc: Randall Hopper <rhh@ct.picker.com>,
        "Louis A. Mamakos" <louie@TransSys.COM>, multimedia@freebsd.org
Subject: Re: First Cut at separating tuner and capture devices 
In-reply-to: Your message of "Sat, 22 Mar 1997 23:08:50 MST."
             <199703230608.XAA18434@Ilsa.StevesCafe.com> 
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Date: Sat, 22 Mar 1997 23:27:08 -0800
From: Amancio Hasty <hasty@rah.star-gate.com>
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I have not exercised the code a lot over here;however, so far it looks
good 8)

	Tnks!
	Amancio

>From The Desk Of Steve Passe :
> Hi,
> 
> I've done the merge of Amancio's minor-mode model of the bt848 driver,
> added the changes we've discussed the last several hours, and added my
> most recent extensions.  It is working with xtvremote and dtv.
> It does NOT work with fxtv yet, but that should be trivial.
> 
> This model now separates the "tuner control" items into a minor device:
> 
> Create a video device:
> mknod bktr0 c 79 0
> 
> Create a tuner device:
> mknod tuner0 c 79 16
> 
> minor device layout:  xxxxxxxx xxxT UUUU
> 
>  UUUU:   the card (ie UNIT) identifier, 0 thru 15
>  T == 0: video device
>  T == 1: tuner device
> 
> Access your tuner ioctl thru your tuner device handle and anything
> which controls the video capture process thru the video device handle.
> 
> Certain ioctl()s such as video source are available thru both devices.
> I *think* I have preserved compatibility with olded meteor-centric 
> clients via a "common_ioctl()" interface.
> 
> We get the protection we wanted: you can only open 1 video device, but you ca
n
> open multiple tuner devices.  (there are probably a few bugs lurking here!)
> 
> Lets get some feedback coming in so Louie can get started on his phase...
> 
> You can grab it here:
> 
> http://www.freebsd.org/~fsmp/HomeAuto/files/bt848.970322.tar.gz
> 
> --
> Steve Passe	| powered by
> smp@csn.net	|            Symmetric MultiProcessor FreeBSD
>