On Thursday 15 September 2005 21:14, Kay Sievers wrote:
> On Thu, Sep 15, 2005 at 09:03:41PM -0500, Dmitry Torokhov wrote:
> > On Thursday 15 September 2005 20:54, Kay Sievers wrote:
> > > On Thu, Sep 15, 2005 at 08:23:43PM -0500, Dmitry Torokhov wrote:
> > > > On Thursday 15 September 2005 20:04, Kay Sievers wrote:
> > > > > I like that the child devices are actually below the parent device
> > > > > and represent the logical structure. I prefer that compared to the
> > > > > symlink-representation between the classes at the same directory
> > > > > level which the input patches propose.
> > > >
> > > > Why don't we take it a step further and abandon classes altogether?
> > > > This way everything will grow from their respective hardware devices.
> > >
> > > Not everything is hardware. :)
> > >
> > > > Class represent a set of objects with similar characteristics. In
> > > > this regard event0 is no "lesser" than input0. Although they are
> > > > linked they are objects of the same importance. I do want to see
> > > > all input interfaces without scanning bunch of directories.
> > >
> > > No problem, how about this:
> > > /sys/class/input/
> > > |-- input0
> > > | |-- event0
> > > | | `-- dev
> > > | `-- mouse0
> > > | | `-- dev
> > > |-- input1
> > > | |-- event1
> > > | | `-- dev
> > > | `-- ts0
> > > | | `-- dev
> > > |-- mice
> > > | `-- dev
> > > `-- interfaces
> > > |-- event0 ->·../input0/event0
> > > |-- event1 ->·../input1/event1
> > > |-- mouse0 ->·../input0/mouse0
> > > |-- mice -> ../mice
> > > `-- ts0 -> ../input1/ts0
> > >
> >
> > I am thinking... the rule would be - when adding a class device if it
> > has a class_device parent then it gets added to parent's directory and
> > symlinked into class. Otherwise it gets added into class directory.
>
> Like this?
>
> /sys/class/input/
> |-- input0
> | |-- event0
> | | `-- dev
> | `-- mouse0
> | | `-- dev
> |-- input1
> | |-- event1
> | | `-- dev
> | `-- ts0
> | | `-- dev
> |-- mice
> | `-- dev
> |-- event0 ->·input0/event0
> |-- event1 ->·input1/event1
> |-- mouse0 ->·input0/mouse0
> `-- ts0 -> input1/ts0
>
No, like your first picture, except 'interfaces/mice' will be a directory,
not a symlink, since it does not have class_device parent. I should have
said "Otherwise it gets added into _its_ class directory".
--
Dmitry
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