From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Horn Date: Wed, 22 Dec 2004 00:54:35 +0000 Subject: Re: udev and irda-usb trouble Message-Id: <200412211954.35080.chris@beefstew.net> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org On Tuesday 21 December 2004 19:52, Greg KH wrote: > On Tue, Dec 21, 2004 at 07:43:47PM -0500, Chris Horn wrote: > > On Tuesday 21 December 2004 19:26, Greg KH wrote: > > > On Tue, Dec 21, 2004 at 07:05:47PM -0500, Chris Horn wrote: > > > > On Tuesday 21 December 2004 18:50, Kay Sievers wrote: > > > > > On Tue, 2004-12-21 at 16:17 -0500, Chris Horn wrote: > > > > > > Generally I am quite happy with udev and USB in Linux. One thing, > > > > > > though, > > > > > > really bothers me. I haven't been able to write a udev rule to pick up > > > > > > my > > > > > > irda-usb based IrDA dongle. > > > > > > > > > > > > I can talk to it just fine if I manually create an irda0 node in /dev > > > > > > with > > > > > > mknod, but I don't want to keep doing that (udev keeps deleting my > > > > > > node). > > > > > > Irattach connects just fine with 'irattach irda0 none -s'** without > > > > > > the /dev/irda0 node, but my application (jpilot) obviously needs a file > > > > > > to > > > > > > talk through. > > > > > > > > > > > > Problems: > > > > > > 1. I can't seem to get any info with udevinfo on any irda or ircomm > > > > > > node. > > > > > > 2. Even if I create a /dev/irda0 node, unload all the modules and then > > > > > > have > > > > > > usb.agent detect the device plugin event and start up all the modules, > > > > > > udev > > > > > > will not make any nodes for me. I even tried rebooting, even though I > > > > > > know > > > > > > that shouldn't be necessary. > > > > > > 3. udev works fine for my other devices. > > > > > > > > > > > > The latest rule I've been trying is: > > > > > > BUS="usb", KERNEL="irda[0-9]", NAME="%k", SYMLINK="%k" > > > > > > > > > > Hey, don't use the same value for NAME _and_ SYMLINK. :) > > > > > > > > > > Kay > > > > > > > > Thanks for the tip - I should've realized that was silly. I've tried it with > > > > other text there (and just re-tried it), though, and it still doesn't work. > > > > > > > > I just tried this: > > > > BUS="usb", KERNEL="irda[0-9]", NAME="%k", SYMLINK="IRdongle" > > > > > > Is there really a /sys/class/usb/irda* device in sysfs for your device? > > > I didn't think the irda driver used the usb major number. Where in > > > sysfs does the "dev" file for this device show up (it should be > > > somewhere in /sys/class/. If not there, that's why this isn't working. > > > > > > thanks, > > > > > > greg k-h > > > > It's got information under /sys/class: > > > > # l /sys/class/net/irda0/ > > total 0 > > -r--r--r-- 1 root root 4096 Dec 21 19:01 addr_len > > -r--r--r-- 1 root root 4096 Dec 21 19:01 address > > -r--r--r-- 1 root root 4096 Dec 21 19:01 broadcast > > -r--r--r-- 1 root root 4096 Dec 21 19:01 features > > -rw-r--r-- 1 root root 4096 Dec 21 19:01 flags > > -r--r--r-- 1 root root 4096 Dec 21 19:01 ifindex > > -r--r--r-- 1 root root 4096 Dec 21 19:01 iflink > > -rw-r--r-- 1 root root 4096 Dec 21 19:01 mtu > > drwxr-xr-x 2 root root 0 Dec 21 19:01 statistics > > -rw-r--r-- 1 root root 4096 Dec 21 19:01 tx_queue_len > > -r--r--r-- 1 root root 4096 Dec 21 19:01 type > > net devices do not have a /dev node :) > Okay, thanks - I didn't know that. Is there anything I can do to get udev (or whatever is responsible) from deleting the nodes I put in by hand? Is there a "don't delete list somewhere?" Thanks. Chris. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ 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