Re: Another udev/sysfs question.

[Greg KH <greg@kroah.com>]

On Fri, Nov 17, 2006 at 10:08:38PM -0600, Kilau, Scott wrote:
> Hi everyone,
> 
> This is really just a sysfs question.
> Not sure if both udev and sysfs questions are dealt with on this list.
> 
> I have a different driver that I am working on now, and porting it to
> use sysfs as well.
> 
> This driver is a "virtual" driver, it doesn't control a board, like on
> a PCI bus, ISA bus, etc, etc.
> 
> I create a "class" for this driver, so it will hang out in /sys/class
> I have gotten my files made in there, so that's working fine.
> 
> Is there a way to create a subdirectory inside of the directory that
> I made in /sys/class ?
> 
> For example, I have /sys/class/digi_realport as the "base" class.
> 
> I would like to hang off subdirectories in there that describe the
> "virtual" nodes for the driver, for example:
> /sys/class/digi_realport/node1 and /sys/class/digi_realport/node2, etc,
> etc.
> 
> Is this possible to do?

"possible" yes.  Should you do it?  No.

What are you really trying to express here in sysfs?  And why do you
need to have a new class for your device, shouldn't it be a real device
and not a class?

If it's a device, you can easily create children of that device using
the driver model.

thanks,

greg k-h

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