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Subject: RE: Registering for multiple SIGIO within a process
From: Ray Lee <ray-lk@madrabbit.org>
To: "Bagalkote, Sreenivas" <Sreenivas.Bagalkote@engenio.com>
Cc: "Bhattacharjee, Satadal" <Satadal.Bhattacharjee@engenio.com>,
       linux-kernel@vger.kernel.org,
       "Patro, Sumant" <Sumant.Patro@engenio.com>,
       "Ram, Hari" <hari.ram@engenio.com>,
       "Mukker, Atul" <Atul.Mukker@engenio.com>
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Date: Wed, 28 Sep 2005 18:15:50 -0700
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On Wed, 2005-09-28 at 20:44 -0400, Bagalkote, Sreenivas wrote:
> >(Sheesh, what is it with people thinking signals are something 
> >to be used in any design after the 1970's?)
> What's your recommendation for asynchronous notification from driver
> to an application?

Pass back an fd to select() upon. Cuts out that nasty middle step where
app authors end up registering a signal handler that merely write()s the
signal number down a pipe into the (nearly ubiquitous) select loop.

Ray