From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfgang Grandegger <wg@grandegger.com>
Subject: Re: [PATCH 2/3 V3.1] can/usb: PEAK-System Technik PCAN-USB specific
 part
Date: Fri, 20 Jan 2012 13:36:39 +0100
Message-ID: <4F195FD7.9070808@grandegger.com>
References: <Pine.LNX.4.44L0.1201191004540.1447-100000@iolanthe.rowland.org> <4F191D44.9080101@hartkopp.net> <4F195E08.5010504@volkswagen.de> <4F195F46.6080102@grandegger.com>
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To: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Cc: Stephane Grosjean <s.grosjean@peak-system.com>, Alan Stern <stern@rowland.harvard.edu>, linux-can Mailing List <linux-can@vger.kernel.org>

On 01/20/2012 01:34 PM, Wolfgang Grandegger wrote:
> Hi Oliver,
> 
> On 01/20/2012 01:28 PM, Oliver Hartkopp wrote:
> 
>> @Wolfgang: I always get "RTNETLINK answers: Device or resource busy"
>> when the device is up - even on the EMS PCMCIA card. Should the manual
>> restart generally be also possible even when the device is up??
> 
> The restart is only for bus-off recovery. It will *not* restart if you
> are not in bus-off.
> 
>> I think the automatic restart (with restart-ms) has no preconditions to
>> the device up/down state.
> 
> But it only triggers in case of bus-off. It has nothing to do with up/down.

If you are at it, please also test the bus-off and bus-off recovery...
Thanks...

Wolfgang.