From: Dan Murphy <dmurphy@ti.com>
To: <jacek.anaszewski@gmail.com>, <pavel@ucw.cz>
Cc: <linux-leds@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Dan Murphy <dmurphy@ti.com>
Subject: [PATCH v7 1/9] leds: multicolor: Add sysfs interface definition
Date: Thu, 19 Sep 2019 13:36:49 -0500 [thread overview]
Message-ID: <20190919183657.1339-2-dmurphy@ti.com> (raw)
In-Reply-To: <20190919183657.1339-1-dmurphy@ti.com>
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 | 43 +++++++++++++++++++
1 file changed, 43 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..39fc73becfec
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-multicolor
@@ -0,0 +1,43 @@
+What: /sys/class/leds/<led>/brightness
+Date: Sept 2019
+KernelVersion: 5.5
+Contact: Dan Murphy <dmurphy@ti.com>
+Description: read/write
+ Writing to this file will update all LEDs within the group to a
+ calculated percentage of what each color LED intensity is set
+ to. The percentage is calculated via the equation below:
+
+ led_brightness = requested_value * led_color_intensity/led_color_max_intensity
+
+ For additional details please refer to
+ Documentation/leds/leds-class-multicolor.rst.
+
+ The value of the color is from 0 to
+ /sys/class/leds/<led>/max_brightness.
+
+What: /sys/class/leds/<led>/colors/<led_color>_intensity
+Date: Sept 2019
+KernelVersion: 5.5
+Contact: Dan Murphy <dmurphy@ti.com>
+Description: read/write
+ The led_color directory is dynamically created based on the
+ colors defined by the registrar of the class.
+ The value for the led_color is defined in the
+ include/dt-bindings/leds/common.h. There is one directory per
+ color presented. The intensity file is created under each
+ led_color directory and controls the individual LED color
+ setting.
+
+ The value of the color is from 0 to
+ /sys/class/leds/<led>/colors/<led_color>_max_intensity.
+
+What: /sys/class/leds/<led>/colors/<led_color>_max_intensity
+Date: Sept 2019
+KernelVersion: 5.5
+Contact: Dan Murphy <dmurphy@ti.com>
+Description: read only
+ Maximum intensity level for the LED color, default is
+ 255 (LED_FULL).
+
+ If the LED does not support different intensity levels, this
+ should be 1.
--
2.22.0.214.g8dca754b1e
next prev parent reply other threads:[~2019-09-19 18:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-19 18:36 [PATCH v7 0/9] Multicolor Framework updates Dan Murphy
2019-09-19 18:36 ` Dan Murphy [this message]
2019-09-19 18:36 ` [PATCH v7 2/9] documention: leds: Add multicolor class documentation Dan Murphy
2019-09-19 18:36 ` [PATCH v7 3/9] dt: bindings: Add multicolor class dt bindings documention Dan Murphy
2019-09-19 18:36 ` [PATCH v7 4/9] dt-bindings: leds: Add multicolor ID to the color ID list Dan Murphy
2019-09-19 18:36 ` [PATCH v7 5/9] " Dan Murphy
2019-09-19 18:36 ` [PATCH v7 6/9] leds: multicolor: Introduce a multicolor class definition Dan Murphy
2019-09-19 18:36 ` [PATCH v7 7/9] dt: bindings: lp50xx: Introduce the lp50xx family of RGB drivers Dan Murphy
2019-09-19 18:36 ` [PATCH v7 8/9] leds: lp50xx: Add the LP50XX family of the RGB LED driver Dan Murphy
2019-09-19 18:36 ` [PATCH v7 9/9] leds: Update the lp55xx to use the multi color framework Dan Murphy
2019-09-21 15:39 ` lkp
2019-09-21 15:45 ` kbuild test robot
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