Re: [PATCHv4 05/13] Documentation/ABI: Add new node sysfs attributes

From: Rafael J. Wysocki
Date: Tue Jan 22 2019 - 11:55:00 EST


On Tue, Jan 22, 2019 at 5:51 PM Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
>
> On Tue, Jan 22, 2019 at 5:37 PM Keith Busch <keith.busch@xxxxxxxxx> wrote:
> >
> > On Sun, Jan 20, 2019 at 05:16:05PM +0100, Rafael J. Wysocki wrote:
> > > On Sat, Jan 19, 2019 at 10:01 AM Greg Kroah-Hartman
> > > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > > >
> > > > If you do a subdirectory "correctly" (i.e. a name for an attribute
> > > > group), that's fine.
> > >
> > > Yes, that's what I was thinking about: along the lines of the "power"
> > > group under device kobjects.
> >
> > We can't append symlinks to an attribute group, though.
>
> That's right, unfortunately.

Scratch this.

You can add them using sysfs_add_link_to_group(). For example, see
what acpi_power_expose_list() does.