From owner-freebsd-multimedia  Sun May 10 12:51:00 1998
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To: Bernie Doehner <bad@uhf.wireless.net>
cc: Luigi Rizzo <luigi@labinfo.iet.unipi.it>, multimedia@FreeBSD.ORG
Subject: Re: new bt848 driver 
In-reply-to: Your message of "Sun, 10 May 1998 11:42:45 PDT."
             <Pine.BSF.3.96.980510113614.339A-100000@shf.wireless.net> 
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Date: Sun, 10 May 1998 12:50:31 -0700
From: Amancio Hasty <hasty@rah.star-gate.com>
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Hi Bernie,
This is what is in the driver:
static int bt848_card = -1;
SYSCTL_INT(_hw, OID_AUTO, bt848_card, CTLFLAG_RW, &bt848_card, -1, "");


What Luigi and friends want is :

A root node for the bt848.
hw.bt848

Then ,

hw.bt848.card
hw.bt848.tuner
hw.bt848.reverse_mute

Because they don't want to do something like:

sysctl -a | grep bt848 to identify all the bt848 variables they rather
do something like:
sysctl hw.bt848

Also the hw.bt848 root node avoids name space pollution and further
categorizes the sysctl tree.

>From browsing at the kernel , I think we want something similar to:
vfs_aio.c:SYSCTL_NODE(_vfs, OID_AUTO, aio, CTLFLAG_RW, 0, "AIO mgmt");

And, I just talk myself into doing it 8)

	Cheers,
	Amancio

> > Yes, I did received the note . Can someone show me how to do it? 
> 
> static int bt848_card=1;
> SYSCTL_INT(_hw,OID_AUTO,bt848_card,CTLFLAG_RW,&bt848_card,0,"");
> 
> Cheers,
> 
> Bernie
> 
> > 
> > 	Tnks,
> > 	Amancio
> > > > If the recognition algorithm fails , you can still program the driver:
> > > > sysctl -w hw.bt848_card=<card-number>
> > > > sysctl -w hw.bt848_tuner=<tuner-number>
> > > > sysctl -w hw.bt848_reverse_mute=<0|1> 1 reverses the function of the tuner mute
> > > 
> > > somebody suggested to create a "bt848" node in the sysctl tree so that
> > > you would have variables namde
> > > 
> > > 	hw.bt848.card
> > > 	hw.bt848.tuner
> > > 
> > > etc. . This probably gives you some advantage when you want to list
> > > only a subset of sysctl variables.
> > > 
> > > 	cheers
> > > 	luigi
> > 
> > 
> > 
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-multimedia" in the body of the message
> > 
> 




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