RE: A better interface, perhaps: a timed signal flag

From: Brown, Len
Date: Wed Jul 26 2006 - 11:13:21 EST

>if the application doesn't need to
>know exactly how many microseconds have gone by, but just whether or
>not 150us has ellapsed, why calculate the necessary time? (Especially
>if it requires using some ACPI interface...)

Yes, ACPI is involved in the boot-time enumeration of various timers
and counters. But at run-time; the use of any and all of them
(including the PM_TIMER supplied by ACPI hardware itself) could/should
appear generic to kernel users, who should not have to directly call
any routine with an "acpi" in it.

I believe that this is true today, and can/should stay true.

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