Re: Patches for device names

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On Wed, Aug 13, 2008 at 10:31:06AM -0700, H. Peter Anvin wrote:
> Scott James Remnant wrote:
>>  b) kernel names remain the same, include DEVNAME in environment
>> 		ACTION=add
>> 		DEVPATH=/class/input/mice
>> 		DEVNAME=/dev/input/mice
>> 		SUBSYSTEM=input
>> 		MAJOR=13
>> 		MINOR=63
>> 	Pro: fixes sysfs and compatibility, attractive
>> 	Con: udev needs patching, extra macro in kernel
>
> In this case, I would also argue we need devname in sysfs.  There are 
> enough tools out there who want to be able to correlate sysfs and devices.

So the kernel should cache this information?  That's a mess, why do that
when userspace already has this mapping (udevinfo provides it).  We
already have a mapping from device major/minor already in sysfs as well.

So why would the kernel need to care about this?

thanks,

greg k-h
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