From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiner Kallweit Subject: [PATCH 0/2] leds: core: add support for color LED's Date: Sun, 7 Feb 2016 01:37:48 +0100 Message-ID: <56B691DC.3020906@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wm0-f67.google.com ([74.125.82.67]:33870 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751499AbcBGKqE (ORCPT ); Sun, 7 Feb 2016 05:46:04 -0500 Received: by mail-wm0-f67.google.com with SMTP id p63so10758194wmp.1 for ; Sun, 07 Feb 2016 02:46:03 -0800 (PST) Sender: linux-leds-owner@vger.kernel.org List-Id: linux-leds@vger.kernel.org To: Jacek Anaszewski Cc: linux-leds@vger.kernel.org This patchset adds support for color LED's. In addition to RGB LED's also LED's with native HSV are implicitely supported (although I know no such devices). Basic idea is to use enum led_brightness also for the hue and saturation color component. Flag LED_BRIGHTNESS_SET_COLOR BIT(24) allows to specify that hue / saturation should be overridden even if the provided values are zero. Some examples for writing values to /sys/class/leds//brightness: (now also values in hex notation can be provided) 255 -> set full brightness and keep existing color if set 0 -> switch LED off but keep existing color so that it can be restored if the LED is switched on again later 0x1000000 -> switch LED off and set also hue and saturation to 0 0x00ffff -> set full brightness, full saturation and set hue to 0 (red) Heiner Kallweit (2): leds: core: add generic support for color LED's leds: core: add support for RGB LED's drivers/leds/led-class.c | 10 ++++-- drivers/leds/led-core.c | 89 +++++++++++++++++++++++++++++++++++++++++++----- include/linux/leds.h | 5 +++ 3 files changed, 94 insertions(+), 10 deletions(-) -- 2.7.0