Dan, Thank you for the update. On 10/18/19 2:25 PM, Dan Murphy wrote: > Introduce a multicolor class that groups colored LEDs > within a LED node. > > The multi color class groups monochrome LEDs and allows controlling two > aspects of the final combined color: hue and lightness. The former is > controlled via <color>_intensity files and the latter is controlled > via brightness file. > > Signed-off-by: Dan Murphy <dmurphy@xxxxxx> > --- > .../ABI/testing/sysfs-class-led-multicolor | 36 +++ > Documentation/leds/index.rst | 1 + > Documentation/leds/leds-class-multicolor.rst | 100 +++++++ > drivers/leds/Kconfig | 10 + > drivers/leds/Makefile | 1 + > drivers/leds/led-class-multicolor.c | 271 ++++++++++++++++++ > include/linux/led-class-multicolor.h | 97 +++++++ > 7 files changed, 516 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-class-led-multicolor > create mode 100644 Documentation/leds/leds-class-multicolor.rst > create mode 100644 drivers/leds/led-class-multicolor.c > create mode 100644 include/linux/led-class-multicolor.h [...] > # LED Platform Drivers > diff --git a/drivers/leds/led-class-multicolor.c b/drivers/leds/led-class-multicolor.c > new file mode 100644 > index 000000000000..453fd8e913e9 > --- /dev/null > +++ b/drivers/leds/led-class-multicolor.c > @@ -0,0 +1,271 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// LED Multi Color class interface > +// Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ > + > +#include <linux/device.h> > +#include <linux/init.h> > +#include <linux/led-class-multicolor.h> > +#include <linux/module.h> > +#include <linux/slab.h> > +#include <linux/uaccess.h> > + > +#include "leds.h" > + > +#define INTENSITY_NAME "_intensity" > +#define MAX_INTENSITY_NAME "_max_intensity" > + > +int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, > + enum led_brightness brightness, > + struct led_mc_color_conversion color_component[]) > +{ > + struct led_mc_color_entry *priv; > + int i = 0; > + > + list_for_each_entry(priv, &mcled_cdev->color_list, list) { > + color_component[i].color_id = priv->led_color_id; > + color_component[i].brightness = brightness * > + priv->intensity / priv->max_intensity; > + i++; > + } For lines in the function above: s/component/components/ > + return 0; > +} > +EXPORT_SYMBOL_GPL(led_mc_calc_color_components); -- Best regards, Jacek Anaszewski
