Messages in this thread | | | Date | Tue, 16 Jul 2013 11:31:49 -0700 | From | Greg KH <> | Subject | Re: driver model, duplicate names question |
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On Tue, Jul 16, 2013 at 11:29:42AM -0700, Srinivas Pandruvada wrote: > Thanks for the quick response. Here I am creating virtual devices using > device_register. > I have attached a simple test program, which will give error. > > This is my intention: > > $> cd /sys/class/test_class > $> ls > power_zone_cpu_package_0 > power_zone_cpu_package_1
Wait, you are mixing a class and a "real" bus up. This will fail as your devices all end up on the virtual "bus" with the same name, in the same location on the bus (look in /sys/devices/virtual/ for where they will end up at.
That will fail, and rightly so.
Try using this with the proper 'struct bus_type' and let me know if creating a device there with the same name will also fail.
Oh crud, it will, because we can't create symlinks with the same bus type in the /sys/bus/BUSTYPE/devices/ directory.
So, don't use the same name for a device on the same bus, that way causes confusion :)
Let's get back to your original "problem", what again are you trying to solve? There should be a way to resolve this without having to deal with duplicate names, perhaps you just want an attribute group with a common name?
thanks,
greg k-h
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