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From: Adrian Cox <adrian@humboldt.co.uk>
To: Michael Hunold <hunold@convergence.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][2.6] Additional i2c adapter flags for i2c client isolation
Date: Tue, 16 Mar 2004 13:26:52 +0000	[thread overview]
Message-ID: <1079443611.1677.194.camel@newt> (raw)
In-Reply-To: <4056C805.8090004@convergence.de>

On Tue, 2004-03-16 at 09:25, Michael Hunold wrote:

> What I'd like to have is that client can specify some sort of "class",
> too, and that i2c adapters can tell the core that only clients where the
> class is matching are allowed to probe their existence.

How about a general "never probe" flag combined with a function to
connect an adapter to a client? High level drivers like DVB or BTTV
could then do something like:
	adapter = i2c_bit_add_bus(&my_card_ops);
	i2c_connect_client(adapter, &client_ops, address);

This problem comes up a lot, and i2c probing is only necessary for
finding motherboard sensors. For add-in cards and embedded systems the
driver developer normally knows exactly what is wired to what.

- Adrian Cox
http://www.humboldt.co.uk/



  reply	other threads:[~2004-03-16 13:26 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-16  9:25 [RFC][2.6] Additional i2c adapter flags for i2c client isolation Michael Hunold
2004-03-16 13:26 ` Adrian Cox [this message]
2004-03-16 14:23   ` Michael Hunold
2004-03-16 15:44 ` Greg KH
2004-03-16 19:14   ` Jean Delvare
2004-03-16 19:53     ` Greg KH
2004-03-17  9:17       ` Jean Delvare
2004-03-17 17:42         ` Greg KH
2004-03-17 20:05           ` Jean Delvare
2004-03-17 23:11             ` Greg KH
2004-03-18 15:56   ` Michael Hunold

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