linux-kernel - Re: I/O collisions w/ hwmon/it87.c and watchdog/it8712f

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Date:	Sun, 10 Feb 2008 23:05:38 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Andrew Paprocki" <andrew@...iboo.com>
Cc:	linux-kernel@...r.kernel.org, "Jorge Boncompte" <jorge@...2.net>,
	"Jean Delvare" <khali@...ux-fr.org>,
	"Chris Gauthron" <chrisg@...n.com>
Subject: Re: I/O collisions w/ hwmon/it87.c and watchdog/it8712f_wdt.c?
 (Super I/O chips in general..)

> Since these chips touch many different parts of traditionally separate
> driver areas, how should the drivers be structured so that they can
> all talk to the chip? Should the low level communications routines for
> the chip live in a library which all the drivers could use? 

Probably yes. And that if possible should manage all the locking. Thats
roughly how the majority of drivers do it. Some export the lock from base
code and inline the accessors depending how complex it is.
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