From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751399AbWE3NVm (ORCPT ); Tue, 30 May 2006 09:21:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751295AbWE3NVm (ORCPT ); Tue, 30 May 2006 09:21:42 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:20644 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S1751102AbWE3NVl (ORCPT ); Tue, 30 May 2006 09:21:41 -0400 Date: Tue, 30 May 2006 15:20:54 +0200 From: Pavel Machek To: rpurdie@rpsys.net, lenz@cs.wisc.edu, kernel list , Russell King , Netdev list , Jirka Lenost Benc , pe1rxq@amsat.org Subject: zd1201 failure on sharp zaurus explained Message-ID: <20060530132054.GA9780@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! Now I found out what went wrong with zd1201 on sharp zaurus (spitz)... Card is detected and seems to work okay, except that you don't get any results from iwlist eth1 scan, and card generally does not do anything involving radio. And now I have an explanation, too: If you plug card directly to zaurus, above is what happens. If you plug it into the hub, hub flashes the lights and shuts down, as if not enough power is available from the zaurus. ...which is probably the case, because if I connect external 6V power supply to the hub, it all starts to work. So... it is 1) hw problem: spitz power supply is not strong enough to drive zd1201 2) usb problem, probably. Should not usb core detect that card requires too much juice and refuse to power it up? ...and the morale is, always put hub between device and the host so that you can see the flashy leds :-). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html