Re: RFC: Light sensors, unifying current options?
From: Jean Delvare
Date: Fri Sep 11 2009 - 03:20:57 EST
On 2009年9月11日 09:55:01 +0800, Zhang Rui wrote:
>
On Thu, 2009年09月10日 at 18:05 +0800, Jonathan Cameron wrote:
>
> Some sensors, e.g. tsl2561 use an internal clock to do sampling and hence
>
> have some predefined period in which the reading taken doesn't change.
>
> Perhaps exporting said period would be useful to userspace?
>
>
>
I don't think so.
>
IMO, the tsl2561 driver should handle this, and there is no need to
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annoy the user space.
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i.e. users always assume the content of "illuminance" attribute is
>
valid, and it's the driver's job to make this true. We don't need to
>
document this.
I agree with Rui on this. Let's not delegate everything to user-space,
otherwise it's pointless to write kernel drivers in the first place.
--
Jean Delvare
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