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From: Juergen Bausa <Juergen.Bausa@web.de>
To: linux-hotplug@vger.kernel.org
Subject: udev remove problems
Date: Sat, 25 Aug 2007 22:22:12 +0000	[thread overview]
Message-ID: <1531272489@web.de> (raw)

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 start scripts. The add 
event works fine:

ACTION="add", SYSFS{idVendor}="11db", SYSFS{idProduct}="1000", MODE="0660", \
  GROUP="toppy", RUN+="/usr/local/bin/tf5000pvr_udev"

In my first try, I used the following for remove:

ACTION="remove", SYSFS{idVendor}="11db", SYSFS{idProduct}="1000",  \
  RUN+="/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 this on the web 
and tried the following:

ACTION="add", SYSFS{idVendor}="11db", SYSFS{idProduct}="1000", MODE="0660", \
  GROUP="toppy", RUN+="/usr/local/bin/tf5000pvr_udev", ENV{toppy}="%p"

ACTION="remove", ENV{toppy}="%p" , RUN+="/usr/local/bin/tf5000pvr_udev"

But it makes no difference: add works fine, but remove doesnt. I used udevmonitor --env 
to see what is happening and found the following:

...

UDEV  [1188080046.847665] remove@/devices/pci0000:00/0000:00:0b.1/usb1/1-2/1-2.1/usbdev1.8_ep00
UDEV_LOG=3
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:0b.1/usb1/1-2/1-2.1/usbdev1.8_ep00
SUBSYSTEM=usb_endpoint
SEQNUM\x1132
MAJORD2
MINOR=7
UDEVD_EVENT=1
toppy=/devices/pci0000:00/0000:00:0b.1/usb1/1-2/1-2.1/usbdev1.8_ep00
DEVNAME=/dev/usbdev1.8_ep00

...

So, the variable is saved and found on the remove event, but the script isnt called. What is wrong here? 

Juergen
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             reply	other threads:[~2007-08-25 22:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-25 22:22 Juergen Bausa [this message]
2007-08-25 22:42 ` udev remove problems Kay Sievers
2007-08-26 21:46 ` Juergen Bausa
2007-08-26 22:10 ` Kay Sievers
2007-08-28 19:48 ` Juergen Bausa
2007-08-29  4:26 ` Kay Sievers
2007-08-29 19:32 ` Juergen Bausa

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