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Date: Fri, 07 Aug 2009 12:06:48 -0700
From: Chris Stankevitz <cstankevitz@toyon.com>
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Subject: Time quantization when reading from serial port
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I receive data on the serial port (flags O_NONBLOCK, VMIN=0, VTIME=0, 
B115200).  The time the data shows up is quantized to 5ms.  Where does 
this 5ms quantization comes from?

Increasing kern.hz to 10000 does not reduce this effect.

Thank you,

Chris