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Date:      Fri, 01 Oct 2021 07:56:07 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 257964] snp(4) manual page is out of sync with the device implementation on 12.2
Message-ID:  <bug-257964-227-PH8aTDM2jN@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-257964-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-257964-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D257964

Felix Johnson <felix.the.red@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |felix.the.red@gmail.com
 Attachment #228305|                            |maintainer-approval?(felix.
              Flags|                            |the.red@gmail.com)

--- Comment #1 from Felix Johnson <felix.the.red@gmail.com> ---
Created attachment 228305
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D228305&action=
=3Dedit
snp(4) patch

Document that:
 - snp(4) can only handle egress streams (ones that originate from the host)
 - The FIONREAD ioctl no longer returns special values,
   move them to the HISTORY section
 - Device disappearance, closure, or detachment will result
   in EIO or ENXIO from read(2) or write(2) calls
 - Flow control is not supported, under BUGS

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