From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Date: Fri, 26 Mar 2004 23:15:31 +0000 Subject: Re: usb cold plugging Message-Id: <20040326231531.GJ31372@kroah.com> List-Id: References: <87ekrv71kf.wl@ukai.org> In-Reply-To: <87ekrv71kf.wl@ukai.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org On Mon, Mar 15, 2004 at 02:58:40AM +0900, Fumitoshi UKAI wrote: > Hi, > > It seems there are some problems in usb coldplugging. > > 1) after usb core modules loaded, it needs some time to propagate > information to /proc or /sys. So, I think we need some wait before > calling usb_boot_events. > But I'm not sure it is sufficient to sleep 1 sec. are there any > better way to wait some files in /proc or /sys ? Sure, you can wait until the specific bus files show up under /sys/bus/BUS_TYPE > 2) if /sys/bus/usb/devices found, it updates DEVPATH and PRODUCT, but > it never call /etc/hotplug/usb.agent, so no coldplugging happens. That's not good. > Is this patch ok to commit? Looks good to me for now. The sleep thing can't hurt :) Feel free to commit it. thanks, greg k-h ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id70&alloc_id638&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