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From: Kaiwan N Billimoria <kaiwan@designergraphix.com>
To: Jean Delvare <khali@linux-fr.org>
Cc: Greg KH <greg@kroah.com>,
	Philippe Seewer <philippe.seewer@bfh.ch>,
	linux-kernel@vger.kernel.org
Subject: Re: Stuck creating sysfs hooks for a driver..
Date: Tue, 21 Feb 2006 11:48:51 +0530	[thread overview]
Message-ID: <43FAB0CB.6010506@designergraphix.com> (raw)
In-Reply-To: <20060219142311.ba0f8a38.khali@linux-fr.org>

Jean Delvare wrote:

>Hi Kaiwan,
>
>You must stay away from writing a driver for the board itself. What you
>must write is in fact two different drivers:
>
>1* A driver for the SPI interface of your board (basically a parallel
>port <-> SPI bridge). This driver will expose the device as an SPI bus
>to the rest of the kernel. This driver doesn't care about what chip is
>plugged on it.
>
>2* A driver for the LM70 temperature sensor chip, which doesn't care
>about the chip location. This driver will use generic SPI commands as
>offered by the spi kernel interface.
>
>  
>
Ok, i see your point..

>It's really not a matter of how many features a chip has. Look at the
>lm75 or w83l785ts driver, you'll see they have very few features as
>well. It's a matter of having a common standard for exporting the
>values to user-space, so that the same library or application can
>handle all sources with minimum effort.
>
>  
>
Yes, again..
I shall start looking into these aspects & workin on it in the coming 
week..am up to my ears in other stuff right now..
though how exactly i don;t know now :) ; will certainly require your 
(and others) help on this..

>Thanks,
>  
>
Thank you, your long reply was very enlightening;
Kaiwan.


  reply	other threads:[~2006-02-21  6:17 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-15  7:54 Stuck creating sysfs hooks for a driver Kaiwan N Billimoria
2006-02-15 22:13 ` Greg KH
2006-02-16 11:33   ` Kaiwan N Billimoria
2006-02-16 12:16     ` Arjan van de Ven
2006-02-16 16:41     ` Greg KH
2006-02-19 13:23     ` Jean Delvare
2006-02-21  6:18       ` Kaiwan N Billimoria [this message]
2006-03-31  6:01       ` SPI <-> Parport (light) bridge code (Re: Stuck creating sysfs hooks for a driver..) Kaiwan N Billimoria
     [not found] <pan.2006.02.15.08.46.27.708727@bfh.ch>
2006-02-15  8:48 ` Stuck creating sysfs hooks for a driver Seewer Philippe

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