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From: David Brownell <david-b@pacbell.net>
To: Jonathan Cameron <Jonathan.Cameron@gmail.com>
Subject: Re: [Patch 0/4] IndustrialIO subsystem (ADCs, accelerometers etc)
Date: Wed, 23 Jul 2008 11:36:25 -0700
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       LM Sensors <lm-sensors@lm-sensors.org>,
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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
> ? init.

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...

- Dave
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