Messages in this thread | | | Date | Wed, 18 Oct 2006 16:09:39 -0700 | From | Greg KH <> | Subject | Re: kernel oops with extended serial stuff turned on... |
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On Wed, Oct 18, 2006 at 05:35:17PM -0500, Kilau, Scott wrote: > Hi Greg, > > > > > I don't understand, what problem is occuring here? Who is trying to > > register with sysfs twice? > > > > thanks, > > > > greg k-h > > > > The original warning/error he gets is: > > > kobject_add failed for ttyM0 with -EEXIST, don't try to register > things > > with the same name in the same directory. > > Presumably this means that "ttyM0" was already registered with > sysfs/udev already...
Yes (sysfs, not udev, there is no kernel portion of udev, sorry).
> In my out-of-tree driver's case, I used to use "TTY_DRIVER_NO_DEVFS" as > a flag. > > When that flag went away, I did not put in "TTY_DRIVER_DYNAMIC_DEV" by > mistake, > and I got the same error as Greg C. > I had to push in "TTY_DRIVER_DYNAMIC_DEV" to fix my problem...
What other driver is using the ttyM0 name?
> I don't know much (anything) about the isicom.c driver, so maybe I am > reading > something into that error that shouldn't be read into it...
Any pointer to your driver's code so I can see if you are doing something odd here? Any reason it's just not in the main kernel tree so I would have fixed it up at the time I did the other fixes?
thanks,
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