From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Thomas Herrmann" Date: Wed, 22 Sep 2004 07:48:49 +0000 Subject: Re: WLAN USB at boot time not recognized Message-Id: <17660.1095839329@www23.gmx.net> List-Id: References: <13924.1095073516@www29.gmx.net> In-Reply-To: <13924.1095073516@www29.gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org >Some USB devices seem to need power cycling to enumerate properly, >and not all motherboards are wired so that Linux can do that. > >You might have better luck hooking that device up through an >external hub. > >- Dave Hi Dave & list, Dave might be right with his comment on power cycling. The system does recognize and configures the USB device after a power cycle (a real one with the power supply being disconnected from the wall plug). Now, since I don't have a hub I did some more experiments. I disabled the hotpluging scripts and put the ohci_hcd module into the modules.autoload file. Then I start the wlan driver as well as the network service in the default runlevel and everything is working well, even after a soft reboot. One major difference I see between using hotplug and the manual approach, by using hotplug and put the system to halt the USB WLAN device is still powered (control light stays on), while with the manual procedure described the device control light turnes off when the system goes to halt. What is hotplug doing different to the USB controller hat the device stays powered while the system halts? Thanks, Thomas -- +++ GMX DSL Premiumtarife 3 Monate gratis* + WLAN-Router 0,- EUR* +++ Clevere DSL-Nutzer wechseln jetzt zu GMX: http://www.gmx.net/de/go/dsl ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ 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