Re: Stuck creating sysfs hooks for a driver..

[Kaiwan N Billimoria <kaiwan@designergraphix.com>]

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.

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