mmap a raw device?

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#1452

From: Mark Harrison
Date: Sun, 08 Nov 1992 00:07

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Should a process be able to mmap() a raw (disk) device?  The
example in the manual shows that an error will occur on mmap()ing
to a terminal, for example, but I can't find a definitive
reference on whether it will or won't work on a raw device.

A colleague's preliminary tests indicate that it won't work.

SunOS 4.something, if it makes a difference.
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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!sun-barr!news2me.EBay.Sun.COM!cronkite.Central.Sun.COM!texsun!jho!harrison
From: harrison@jho.com (Mark Harrison)
Newsgroups: comp.unix.internals
Subject: mmap a raw device?
Message-ID: <1992Nov08.000752.2030@jho.com>
Date: 8 Nov 92 00:07:52 GMT
Organization: Software Programming, Inc., Dallas, Texas USA
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