Messages in this thread | | | Date | Fri, 16 Sep 2005 10:44:36 -0500 | From | Dmitry Torokhov <> | Subject | Re: [RFC] subclasses in sysfs to solve world peace |
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On 9/16/05, Vojtech Pavlik <vojtech@suse.cz> 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. > > That'd seem like a quite a good idea to me. ;) >
You just saying that ;)
Look at I2C/sensors people. They are moving from having every sensor crampled into I2C bus to hwmon class so all the sensors can be easily located (by some program or what's not).
> > Class represent a set of objects with similar characteristics. In > > this regard event0 is no "lesser" than input0. > > Well, input0 itself can't be accessed from userspace, so it's different. >
Why is this a factor? We are not talking about /dev here. We have a lot of things in sysfs that are not directly accessible from userspace.
> > Although they are > > linked they are objects of the same importance. I do want to see > > all input interfaces without scanning bunch of directories. > > A directory with symlinks to all the interfaces of the class might make > sense. >
I'll try fix the patch I posted last night (that implements the above, or at least what Kay described with sub-devices residing under their parent devices and symlinked into their classes), I believe it could also be used for block, so it will be like:
.../block/ |-- devices | |-- sda | | |-- device -> ../../../../ | | |-- sda1 | | | |-- dev | | | `-- device -> ../../../../../block/partitions/sda1 | | |-- sda2 | | | |-- dev | | | `-- device -> ../../../../../block/partitions/sda2 ... `-- partitions |-- sda1 -> ../../../class/block/devices/sda/sda1 |-- sda2 -> ../../../class/block/devices/sda/sda2
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