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Date:      Fri, 28 Aug 1998 13:54:04 +0000
From:      Mike Smith <mike@smith.net.au>
To:        "Steven G. Kargl" <kargl@troutmask.apl.washington.edu>
Cc:        mike@smith.net.au (Mike Smith), freebsd-hardware@FreeBSD.ORG
Subject:   Re: new gpib driver and select/poll issues 
Message-ID:  <199808281354.NAA01021@dingo.cdrom.com>
In-Reply-To: Your message of "Fri, 28 Aug 1998 13:51:10 MST." <199808282051.NAA14051@troutmask.apl.washington.edu> 

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> > Studying other drivers tends to indicate that it should become 
> > 'seltrue'.
> 
> Okay.  I'll see what happens.  I don't have a 2.2.x system to
> compare against, but it seems to me to be some sort of negative
> logic.  
> 
> seltrue ---> select is true (a select function is available for
>              this device driver).
> 
> noselect --> no select function available.

No.  "noselect" meant "there is no select function available".

"seltrue" now means "there is no way to know whether data is available, 
so always assume there is".

The GPIB driver should eventually support select/poll.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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