Re: [Patch 0/4] IndustrialIO subsystem (ADCs, accelerometers etc)
From: David Brownell
Date: Wed Jul 23 2008 - 14:39:52 EST
On Wednesday 23 July 2008, Jonathan Cameron wrote:
> * Software ring buffer support to allow semi regular capture of data form the
> device. Typically this will be driven from either datardy events, or from
> a periodic timer interrupt (to this end a very simple wrapper for periodic
> RTC's is included. This will move to more generic timer interfaces as and when
> they become available. For now available rtc's must be registered with the
> subsystem via the industrialio_register_ptimer function form within a board
Could you elaborate a bit on why you'd want hardware supported
periodic timers, rather than either an hrtimer or a timer?
Maybe provide some real-world scenarios where those software
abstractions are inappropriate.
I can imagine numerous reasons, but those might not be yours...
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