* inequality operator semantics
@ 2011-08-11 12:25 Steffen Sledz
2011-08-11 12:45 ` Kay Sievers
0 siblings, 1 reply; 2+ messages in thread
From: Steffen Sledz @ 2011-08-11 12:25 UTC (permalink / raw)
To: linux-hotplug
Just a short question about the semantics of the != operator in conjunction with e.g. DRIVERS.
Does
DRIVERS!="xyz"
mean DRIVER for *all* parents is not equal to "xyz", or that there is *at least* one parent with this condition?
Does this semantics had changed over the time?
Regards,
Steffen Sledz
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: inequality operator semantics
2011-08-11 12:25 inequality operator semantics Steffen Sledz
@ 2011-08-11 12:45 ` Kay Sievers
0 siblings, 0 replies; 2+ messages in thread
From: Kay Sievers @ 2011-08-11 12:45 UTC (permalink / raw)
To: linux-hotplug
On Thu, Aug 11, 2011 at 14:25, Steffen Sledz <sledz@dresearch-fe.de> wrote:
> Just a short question about the semantics of the != operator in conjunction with e.g. DRIVERS.
>
> Does
>
> Â DRIVERS!="xyz"
>
> mean DRIVER for *all* parents is not equal to "xyz", or that there is *at least* one parent with this condition?
One parent that doesn't match. DRIVERS!= not combined with more
matches makes not much sense. There should be in all cases a driver,
along the chain of parent devices, that does not match the string.
> Does this semantics had changed over the time?
Don't think so.
Kay
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