From mboxrd@z Thu Jan 1 00:00:00 1970 From: Moshe Yudkowsky Date: Thu, 01 Dec 2005 04:19:40 +0000 Subject: Re: Does RUN work with "remove" events? Message-Id: <438E79DC.1090208@bl.com> List-Id: References: <438E2455.5090702@bl.com> In-Reply-To: <438E2455.5090702@bl.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Kay Sievers wrote: > On Wed, Nov 30, 2005 at 04:14:45PM -0600, Moshe Yudkowsky wrote: > >> I've written a udev rule to add a UMS flash drive with device name /dev/ums: >> >> SYSFS{product}="Flash Disk", NAME="ums", RUN+="/etc/hotplug/usb/ums" > > > > Sysfs values are not readable at remove, cause the device directory is > already gone. You need to match against properties which you can see in > udevmonitor --env or you need to store a custom key with ENV{key}="value" > in the database, which is imported on remove. Kay, Thank you very much. I suspected that something of the sort was happening; but I wasn't aware that custom keys for ENV were possible. (It's not on the man page.) Here's my fix. I've created the following rules: ACTION="add", SYSFS{product}="Flash Disk", NAME="ums", RUN+="/etc/hotplug/usb/ums", ENV{flashdrive}="%p" ACTION="remove", ENV{flashdrive}="%p", RUN+="/etc/hotplug/usb/ums" The first rule sets, on an "add," the custom environment variable "flashdrive" to the value of DEVPATH (%p). The 2nd rule checks, on a "remove," to see if the devpath that's being removed is the one for the flash drive -- if so, the designated script runs. -- Moshe Yudkowsky work: http://www.Disaggregate.com book: http://www.PebbleAndAvalanche.com ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_idv37&alloc_id865&op=click _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel