From: Dan Murphy <dmurphy@ti.com>
To: robh+dt@kernel.org, jacek.anaszewski@gmail.com, pavel@ucw.cz
Cc: linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org,
Dan Murphy <dmurphy@ti.com>
Subject: [RFC PATCH] leds: multicolor: Add sysfs interface definition
Date: Wed, 30 Jan 2019 12:30:05 -0600 [thread overview]
Message-ID: <20190130183005.833-1-dmurphy@ti.com> (raw)
Add a documentation of LED Multicolor LED class specific
sysfs attributes.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
.../ABI/testing/sysfs-class-led-multicolor | 38 +++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-class-led-multicolor
diff --git a/Documentation/ABI/testing/sysfs-class-led-multicolor b/Documentation/ABI/testing/sysfs-class-led-multicolor
new file mode 100644
index 000000000000..19f8da9b150e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-multicolor
@@ -0,0 +1,38 @@
+What: /sys/class/leds/<led>/color/sync_enable
+Date: January 2019
+KernelVersion: 5.0
+Contact: Dan Murphy <dmurphy@ti.com>
+Description: read/write
+ Writing a 1 to this file will enable the sychronization of all
+ the defined color LEDs within the LED node. Writing a 0 to
+ this file will disable syncing.
+
+What: /sys/class/leds/<led>/color/sync
+Date: January 2019
+KernelVersion: 5.0
+Contact: Dan Murphy <dmurphy@ti.com>
+Description: write only
+ Writing a 1 to this file while sync_enable is set to 1 will
+ synchronize all defined LEDs within the LED node. All LEDs
+ defined will be configured based on the brightness that has
+ been requested.
+
+ If sync_enable is set to 0 then writing a 1 to sync has no
+ affect on the LEDs.
+
+What: /sys/class/leds/<led>/color/<led color>
+Date: January 2019
+KernelVersion: 5.0
+Contact: Dan Murphy <dmurphy@ti.com>
+Description: read/write
+ These files are dynamically created based on the colors defined
+ by the registrar of the class.
+ The led color(s) can be but not limited to red, green, blue,
+ white, amber and violet. If sync is enabled then writing the
+ brightness value of the LED is deferred until a 1 is
+ written to /sys/class/leds/<led>/color/sync. If syncing is
+ disabled then the LED brightness value will be written
+ immediately to the LED driver.
+
+ The value of the color is from 0 to
+ /sys/class/leds/<led>/max_brightness.
--
2.20.1.98.gecbdaf0899
next reply other threads:[~2019-01-30 18:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-30 18:30 Dan Murphy [this message]
2019-01-30 19:37 ` [RFC PATCH] leds: multicolor: Add sysfs interface definition Jacek Anaszewski
2019-01-30 19:59 ` Dan Murphy
2019-01-30 20:20 ` Jacek Anaszewski
2019-01-30 21:07 ` Dan Murphy
2019-01-30 22:14 ` Jacek Anaszewski
2019-01-31 13:48 ` Dan Murphy
2019-01-31 20:54 ` Jacek Anaszewski
2019-01-30 22:35 ` Pavel Machek
2019-02-08 4:55 ` Vesa Jääskeläinen
2019-02-08 5:09 ` Vesa Jääskeläinen
2019-02-08 16:55 ` Dan Murphy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190130183005.833-1-dmurphy@ti.com \
--to=dmurphy@ti.com \
--cc=jacek.anaszewski@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-leds@vger.kernel.org \
--cc=pavel@ucw.cz \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).