From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kay Sievers Date: Fri, 09 Jan 2004 14:21:12 +0000 Subject: udev - question about current config format Message-Id: <20040109142112.GA752@vrfy.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Hi Greg, I want to ask if we shouldn't change the namedev logic and make the rules generic and drop the different methods, cause the name for the method is mostly redundant. All what namedev does is applying a name when all device attributes are matching. It's not neccessary to to tell namedev to REPLACE, cause we always replace :) And why shouldn't we be able to combine a SYSFS_ attribute with the KERNEL name? So here is a first idea: Every line in udev.rules consists only of a number of ="" BUS match with bus type SYSFS_ match with device attribute ID/PLACE match with bus "number" or "id" KERNEL match with kernel device name RESULT match with string returned by executed PROGRAM PROGRAM program to execute (true if exec returned with 0) NAME name for the device node SYMLINK one or more symlinks to NAME The rules are processed in the order they are given in the file. Every configured KEY must match to apply the rule. It would be more flexible cause we may use all possible keys in a rule. It would be possible to exec the external program only for one specific device to get its name. We would be able to skip the expensive execution of the external program if one of the other keys doesn't match. KERNEL="video*", PROGRAM="script.sh", NAME="%c" SYSFS_model="V0815", PROGRAM="script.sh", NAME="%c" SYSFS_model="V0815", KERNEL="video*", NAME="video/%n" Do we need a bus PLACE? In current udev it seems we have the same processing for TOPOLOGY and NUMBER. What do you think? Do I miss something? thanks, Kay ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ 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