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Date:      Thu, 6 Apr 1995 00:32:50 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@FreeBSD.org (FreeBSD hackers)
Subject:   Re: devices going offline
Message-ID:  <199504052232.AAA07605@uriah.heep.sax.de>
In-Reply-To: <199504052140.OAA24013@seagull.rtd.com> from "Don Yuniskis" at Apr 5, 95 02:40:53 pm

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As Don Yuniskis wrote:
> 
>     When an external device has the capability of being manually
> taken offline during an operation, should the driver automatically
> resume when the device returns online? Or, abort the operation
> in progress (signalling an error)?  Or, prompt (how?) for user
> intervention??

It simply can't do the latter.  (A device driver does not have an
interactive terminal, and it does not need to have an attached process
while operating in the ``bottom half'' of the kernel.)

I'd say: EIO.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)



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