From mboxrd@z Thu Jan  1 00:00:00 1970
From: Juergen Bausa <Juergen.Bausa@web.de>
Date: Sun, 26 Aug 2007 21:46:22 +0000
Subject: Re: udev remove problems
Message-Id: <1535020076@web.de>
List-Id: <linux-hotplug.vger.kernel.org>
References: <1531272489@web.de>
In-Reply-To: <1531272489@web.de>
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To: linux-hotplug@vger.kernel.org


> -----Urspr=FCngliche Nachricht-----
> Von: "Kay Sievers" <kay.sievers@vrfy.org>
> Gesendet: 26.08.07 00:42:51
> An: "Juergen Bausa" <Juergen.Bausa@web.de>
> CC: linux-hotplug-devel@lists.sourceforge.net
> Betreff: Re: udev remove problems


>=20
> On 8/26/07, Juergen Bausa <Juergen.Bausa@web.de> wrote:
> > udev remove problems
> >
> > I am using udev 0.105-4 on debian etch. I am trying to setup rules for =
pvr (hard disk recorder)
> > that is connected to my system via usb. Add and remove events should st=
art scripts. The add
> > event works fine:
> >
> > ACTION=3D"add", SYSFS{idVendor}=3D"11db", SYSFS{idProduct}=3D"1000", MO=
DE=3D"0660", \
> >   GROUP=3D"toppy", RUN+=3D"/usr/local/bin/tf5000pvr_udev"
> >
> > In my first try, I used the following for remove:
> >
> > ACTION=3D"remove", SYSFS{idVendor}=3D"11db", SYSFS{idProduct}=3D"1000",=
  \
> >   RUN+=3D"/usr/local/bin/tf5000pvr_udev"
> >
> > This did not work (in the case of remove nothing happens). I think its =
because sysfs
> > values are already gone in case of an remove event. I found a hint on t=
his on the web
> > and tried the following:
> >
> > ACTION=3D"add", SYSFS{idVendor}=3D"11db", SYSFS{idProduct}=3D"1000", MO=
DE=3D"0660", \
> >   GROUP=3D"toppy", RUN+=3D"/usr/local/bin/tf5000pvr_udev", ENV{toppy}=
=3D"%p"
> >
> > ACTION=3D"remove", ENV{toppy}=3D"%p" , RUN+=3D"/usr/local/bin/tf5000pvr=
_udev"
>=20
> > So, the variable is saved and found on the remove event, but the script=
 isnt called. What is wrong here?
>=20
> The string you compare against may not run through the format char
> replacement, not sure. Just do ENV{toppy}=3D"?*", or use the
> ENV{REMOVE_CMD}=3D"/usr/local ..." which Debian supports. So you don't
> need a separate remove rule at all.
>=20
> Kay
>=20

Thanks. I used REMOVE_CMD and the script is called. But now I have the prob=
lem, that the=20
remove event appears, when the device is accessed.

When I plug in, add is called many times (ca. 5). That is no problem, becau=
se my script works=20
only on the first call. The script creates a desktop icon and starts a daem=
on, that allows me to
access my device through  a local ftp server. This works without any proble=
m.

But when I try to login to the ftp server, which triggers actual transfer t=
o the usb device, the=20
remove event is run and my remove script is called.

I have no idea why. Any Hints?

Juergen


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