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From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.unix-wizards
Subject: Re: When write()ing to a raw device, what is known on return?
Message-ID: <2361@umcp-cs.UUCP>
Date: Fri, 29-Nov-85 15:37:46 EST
Article-I.D.: umcp-cs.2361
Posted: Fri Nov 29 15:37:46 1985
Date-Received: Sat, 30-Nov-85 06:57:02 EST
References: <171@ecrcvax.UUCP>
Organization: U of Maryland, Computer Science Dept., College Park, MD
Lines: 10

In article <171@ecrcvax.UUCP> snoopy@ecrcvax.UUCP (Sebastian Schmitz)
describes how little is assured by the successful return of a write
system call.  What is said is correct, but does NOT apply to I/O
on raw devices.  A successful write on a raw device guarantees that
your data has reached the peripheral.  Whether it has been indelibly
inscribed depends on the device.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 4251)
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