From owner-freebsd-hackers  Fri Jan 23 05:51:17 1998
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From: "Alfred Perlstein" <perlsta@sunyit.edu>
To: "Mike Smith" <mike@smith.net.au>
Cc: <daniel_sobral@voga.com.br>, <mike@smith.net.au>, <hackers@FreeBSD.ORG>
Subject: Re: uiomove() 
Date: Fri, 23 Jan 1998 08:43:07 -0500
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> > I'm hoping i don't get yelled at here, but why not queue all subsequent
> > open operations and block those processes operations on the device?
> > at least until a read is done?
> This doesn't necessarily help; if a process holding an open descriptor 
> on your device forks, there are now two processes holding open 
> descriptors but there has been no second open() call.  This has been 
> discussed to death.
ooops :)

> > what's the point of an encryption card if you can't have multiple
processes
> > acesses it, at least "transparently" in parrallel?
> I dunno, but the card in question performs stream, not block 
> encryption, and there is no mechanism (that Daniel seems to know of 
> anyway) to recover context from the card to allow switching streams.
is this a "Fred's(tm) encryption card"? :)

-Alfred