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From: Bodo Eggert <7eggert@gmx.de>
To: Uncle George <netbeans@gatworks.com>, linux-kernel@vger.kernel.org
Subject: Re: SELECT() returns 1 But FIONREAD says (Input/output error)
Date: Fri, 01 Jun 2007 14:19:04 +0200	[thread overview]
Message-ID: <E1Hu65z-0000wG-9a@be1.lrz> (raw)
In-Reply-To: <8qXzx-jY-31@gated-at.bofh.it>

Uncle George <netbeans@gatworks.com> wrote:

> i am using the GARMIN_GPS/usb driver to read a gps receiver.
> In testing the ability of my software to recover from various errors, I
> try this: unplug the gps/USB cable from the usb hub.
> 
> Interestingly enough the thread spins.
> the SELECT() waits for something to happen, and I get one channel that
> something interesting happened.

Or, more precisely, that you won't have to wait for an event.

> Needless to day, the code resets the SELECT parameters, and SELECT is 
> called again. It again says that something interesting has happened on 
> that ( i/o errored ) channel. And we now repeat the  FIONREAD.

That's exactly what select promised you'd get.
-- 
Today's assembler command: EXOP Execute Operator 

Friß, Spammer: huirt@mQqfrym.7eggert.dyndns.org t@FarcIkc.7eggert.dyndns.org
 wV1uda@wV.7eggert.dyndns.org ycsryPljcb@kj.7eggert.dyndns.org

       reply	other threads:[~2007-06-01 12:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <8qXzx-jY-31@gated-at.bofh.it>
2007-06-01 12:19 ` Bodo Eggert [this message]
     [not found] <fa.qaWJQn9l1jDV+N9wFv9WqATf44U@ifi.uio.no>
     [not found] ` <fa.pq45zUHWQMSHoRGL/M4uTPfFWHg@ifi.uio.no>
2007-06-01  2:48   ` Robert Hancock
2007-06-02  0:02     ` Uncle George
2007-05-31 18:17 Uncle George
2007-06-01  1:01 ` David Schwartz
2007-06-01  1:53   ` Uncle George
2007-06-01 16:43     ` David Schwartz
2007-06-01 17:07       ` Uncle George
2007-06-01 17:33         ` David Schwartz
2007-06-01 20:04           ` Uncle George
2007-06-01 22:03             ` David Schwartz
2007-06-01 12:01   ` Uncle George

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