Thread (67 messages) flat view 67 messages, 5 authors, 2021-02-28

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

From: William Breathitt Gray <hidden>
Date: 2021-02-19 08:52:34
Also in: linux-iio, lkml

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 [off-list ref] wrote:
quoted
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@lechnology.com>
Cc: Gwendal Grignou <redacted>
Cc: Dan Carpenter <redacted>
Signed-off-by: William Breathitt Gray <redacted>
---
 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@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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