From owner-freebsd-multimedia  Sat Jul 11 19:18:16 1998
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From: Kevin Day <toasty@home.dragondata.com>
Message-Id: <199807120056.TAA09961@home.dragondata.com>
Subject: Re: bt878 support
In-Reply-To: <19980711193123.A15158@ct.picker.com> from Randall Hopper at "Jul 11, 98 07:31:23 pm"
To: rhh@ct.picker.com (Randall Hopper)
Date: Sat, 11 Jul 1998 19:56:14 -0500 (CDT)
Cc: hasty@rah.star-gate.com, multimedia@FreeBSD.ORG
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> Kevin Day:
>  |I just purchased a new bt878 compatible card... After a lot of fiddling from
>  |Amancio, we got it working properly... However, I'm not able to get the
> 
> Hey, glad to hear it!
> 
>  |video in on the card to work. (blue screen, no video) In vic, we're able to
>  |get it to work using 'port-3' using the meteor device. Amancio has asked me
>  |to ask you to add support for it. :)
>  |
>  |Any way I can help? :)
> 
> Well, I just caught up on the bt878 mail, and I have a few related questions:
> 
>     1. Does your TV card feed all 4 Bt878 inputs?  

No. :)

>     2. What are the Bt878 inputs on your card connected to?
>        (tuner, video jacks, svideo jacks, etc.)

I have a tuner in, and a video in. That's it.

> 
> The reason I ask is this:  By convention, the mappings for Bt848 input
> device types -to- bktr input device ioctl #defines are as follows:
> 
>       #define   DEVICE TYPE
>       -------   ---------------
>        DEV0   = STD VIDEO INPUT
>        DEV1   = TUNER     INPUT
>        DEV2   = SVIDEO    INPUT
> 
> This is fine.  The app and the user don't need to know what strange way
> "manufacturer X" wired up devices to the Bt848 inputs.  The driver knows,
> and it remaps these in a standard way to driver #defines.
> 
> The issue I'm getting at here is, shouldn't the driver internally be
> mapping the DEV0 input device type #define (i.e. STD VIDEO INPUT) to the
> Bt878 Mux 3 for your card?  Or do you have "2" STD VIDEO inputs on your
> card?  Or do we have a new type of of input device that can appear on TV
> boards?
> 
> Randall

I'm not exactly sure here, you'll have to ask Amancio about what he found.
:)

It's just a standard video in, but apparently connected differently.

Kevin

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