Messages in this thread | | | Date | Thu, 28 Aug 2008 10:33:01 -0700 | From | Greg KH <> | Subject | Re: [PATCH 2/2] uevent: handle duplicate uevent_var keys properly |
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On Thu, Aug 28, 2008 at 07:00:39PM +0200, Tejun Heo wrote: > Greg KH wrote: > > On Thu, Aug 28, 2008 at 06:31:02PM +0200, Tejun Heo wrote: > >> add_uevent_var() appends the specified variable whether the new entry > >> has duplicate key or not. This patch makes add_uevent_var() to > >> override the existing entry if an entry with the same key is added > >> later. This will be used by CUSE (character device in userland) to > >> fake hotplug events. > > > > Hm, do you have any pointers to CUSE, that sounds interesting. > > I'm in the process of sending patches. I'll cc you on the actual postings.
Thanks, I'd appreciate that.
> > And how would this change interact with fake hotplug events? > > CUSE creates actual devices but those devices are all cuse class > devices. To play nicely with sysfs/hal, the ADD/REMOVE uevents should > have about the same variables as the actual device including the > SUBSYSTEM, so that's where the overriding comes in. CUSE client tells > CUSE that it needs to set such such envs for uevents and CUSE overrides > uevents before sending it out so that sysfs/hal can be fooled.
Heh, nice, sounds interesting. I'll queue this patch up.
thanks,
greg k-h
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