sensors fun..
Poul-Henning Kamp
phk at phk.freebsd.dk
Fri Oct 19 05:34:52 PDT 2007
In message <20071019134842.rhlnbcqrbc4sc4o4 at webmail.leidinger.net>, Alexander L
eidinger writes:
>>> I was thinking you talk about the interface between the kernel and the
>>> userland. Now I think that you talk more or less about something which
>>> could be implemented e.g., as an userland library which not only polls
>>> the kernel sensors framework, but provides the single-system sensor
>>> data (and could be a base of a singe-system sensor daemon which feeds
>>> its data to a group-level sensors framework). Does this sound like
>>> what you have in mind?
>>
>> It certainly sounds more sensible.
>
>More sensible than what?
Than the OpenBSD sensors concept
>What to do with sensors which aren't event based or don't have a
>predefined polling interval (e.g., temperature and humidity)? What do
>you think will the ratio be between the amount of sensors with and
>without something like this?
They poll at whatever rate the application ask them to, (using an
ioctl ?)
>How is the kernel supposed to know what polling policy the user is
>interested in (every 5sec/every minute/every 5 minutes/whatever)? Why
>should this policy/procedure life in the kernel?
Nobody said the policy should live in the kernel.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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