From mboxrd@z Thu Jan 1 00:00:00 1970 From: DervishD Date: Tue, 27 Feb 2007 20:17:01 +0000 Subject: Re: Loading modules on demand with /sbin/hotplug Message-Id: <20070227201701.GA16331@DervishD> List-Id: References: <20070227172320.GA10176@DervishD> In-Reply-To: <20070227172320.GA10176@DervishD> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: linux-hotplug@vger.kernel.org Hi Kay :) Thanks for your fast answer :) * Kay Sievers dixit: > On 2/27/07, DervishD wrote: > > Right now I'm using "udevinfo -q name -p $ENV{DEVPATH}", which > >correctly tells me the /dev entry I need to handle, and this works (I > >mean, I'm able to create/remove mountpoints and load/unload modules) for > >an USB pendrive I have at hand to make tests, but I'm not sure if this > >is a good general method, given that I will have USB removable hard > >discs, a camera (PTP protocol, not usb-storage), a Palm PDA, etc... > >Also, I want to do this too for audio (the system has two cards and they > >will be used by name), etc. If my method is enough, just tell and I'll > >shut up ;) >=20 > All events that created a device-node, contain DEVNAME in the environment. OK, that's a GOOD starting point :)) I thought that DEVNAME was dependent on some obscure driver internal, that some drivers exported a DEVNAME and other didn't. > If you find MODALIAS in the environment, just run /sbin/modprobe with > a RUN rule and almost all needed modules should get auto-loaded. There > are only a few exceptions for exotic subsystems. You're reading my mind ;)) My next question was going to be if instead of using my program for that, I could use just a RUN rule. Right now my script does exactly that: if a MODALIAS is present, it loads the module. Otherwise, it looks into its config file to see if any action must be performed for the device node (creating mount points, load modules, whatever). My rules file to do that is: RUN+=3D"/usr/sbin/hal" My "hal" script does all the work, but thanks to your kind advice, I'll add this rule: $ENV{MODALIAS}=3D"?*" RUN+=3D"modprobe $env{MODALIAS}" Anything wrong with this rule? Thanks a lot, Kay :) Ra=FAl N=FA=F1ez de Arenas Coronado --=20 Linux Registered User 88736 | http://www.dervishd.net It's my PC and I'll cry if I want to... RAmen! ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=3Djoin.php&p=3Dsourceforge&CID=DEVD= EV _______________________________________________ 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