From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Date: Wed, 13 Aug 2008 17:49:19 +0000
Subject: Re: Patches for device names
Message-Id: <20080813174919.GA30052@kroah.com>
List-Id: <linux-hotplug.vger.kernel.org>
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To: linux-hotplug@vger.kernel.org

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=3D/class/input/mice
>> 		DEVNAME=3D/dev/input/mice
>> 		SUBSYSTEM=3Dinput
>> 		MAJOR=13
>> 		MINORc
>> 	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=20
> 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