[PATCH v8 19/22] counter: Implement extension*_name sysfs attributes

[William Breathitt Gray]

On Sun, Feb 14, 2021 at 06:09:13PM +0000, Jonathan Cameron wrote:
> On Fri, 12 Feb 2021 21:13:43 +0900
> William Breathitt Gray <vilhelm.gray at gmail.com> wrote:
> 
> > The Generic Counter chrdev interface expects users to supply extension
> > IDs in order to select extensions for requests. In order for users to
> > know what extension ID belongs to which extension this information must
> > be exposed. The extension*_name attribute provides a way for users to
> > discover what extension ID belongs to which extension by reading the
> > respective extension name for an extension ID.
> > 
> > Cc: David Lechner <david at lechnology.com>
> > Cc: Gwendal Grignou <gwendal at chromium.org>
> > Cc: Dan Carpenter <dan.carpenter at oracle.com>
> > Signed-off-by: William Breathitt Gray <vilhelm.gray at gmail.com>
> > ---
> >  Documentation/ABI/testing/sysfs-bus-counter |  9 ++++
> >  drivers/counter/counter-sysfs.c             | 51 +++++++++++++++++----
> >  2 files changed, 50 insertions(+), 10 deletions(-)
> > 
> > diff --git a/Documentation/ABI/testing/sysfs-bus-counter b/Documentation/ABI/testing/sysfs-bus-counter
> > index 6353f0a2f8f8..847e96f19d19 100644
> > --- a/Documentation/ABI/testing/sysfs-bus-counter
> > +++ b/Documentation/ABI/testing/sysfs-bus-counter
> > @@ -100,6 +100,15 @@ Description:
> >  		Read-only attribute that indicates whether excessive noise is
> >  		present at the channel Y counter inputs.
> >  
> > +What:		/sys/bus/counter/devices/counterX/countY/extensionZ_name
> > +What:		/sys/bus/counter/devices/counterX/extensionZ_name
> > +What:		/sys/bus/counter/devices/counterX/signalY/extensionZ_name
> > +KernelVersion:	5.13
> > +Contact:	linux-iio at vger.kernel.org
> > +Description:
> > +		Read-only attribute that indicates the component name of
> > +		Extension Z.
> 
> Good to say what form this takes.

Do you mean a description like this: "Read-only string attribute that
indicates the component name of Extension Z"?

William Breathitt Gray
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