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Add basic leds interface backlight control

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This commit is contained in:
Werner Sembach 2022-07-15 14:46:25 +02:00
parent 6cf70084ab
commit 42f8a677cf
1 changed files with 20 additions and 0 deletions
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20
src/clevo_keyboard.h
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@ -22,6 +22,8 @@
#include "tuxedo_keyboard_common.h" #include "tuxedo_keyboard_common.h"
#include "clevo_interfaces.h" #include "clevo_interfaces.h"
#include <linux/leds.h>
#define BRIGHTNESS_MIN 0 #define BRIGHTNESS_MIN 0
#define BRIGHTNESS_MAX 255 #define BRIGHTNESS_MAX 255
#define BRIGHTNESS_DEFAULT BRIGHTNESS_MAX #define BRIGHTNESS_DEFAULT BRIGHTNESS_MAX
@ -644,6 +646,23 @@ static DEVICE_ATTR(brightness, 0644, show_brightness_fs, set_brightness_fs);
static DEVICE_ATTR(mode, 0644, show_blinking_patterns_fs, set_blinking_pattern_fs); static DEVICE_ATTR(mode, 0644, show_blinking_patterns_fs, set_blinking_pattern_fs);
static DEVICE_ATTR(extra, 0444, show_hasextra_fs, NULL); static DEVICE_ATTR(extra, 0444, show_hasextra_fs, NULL);
int ledcdev_set_blocking(struct led_classdev *led_cdev, enum led_brightness brightness) {
set_brightness(brightness);
return 0;
}
enum led_brightness ledcdev_get(struct led_classdev *led_cdev) {
return kbd_led_state.brightness;
}
struct led_classdev cdev_brightness = {
.name = KBUILD_MODNAME "::kbd_backlight",
.max_brightness = BRIGHTNESS_MAX,
.brightness_set_blocking = &ledcdev_set_blocking,
.brightness_get = &ledcdev_get,
.brightness = BRIGHTNESS_DEFAULT,
};
static void clevo_keyboard_init_device_interface(struct platform_device *dev) static void clevo_keyboard_init_device_interface(struct platform_device *dev)
{ {
// Setup sysfs // Setup sysfs
@ -701,6 +720,7 @@ static void clevo_keyboard_init_device_interface(struct platform_device *dev)
("Sysfs attribute file creation failed for brightness\n"); ("Sysfs attribute file creation failed for brightness\n");
} }
led_classdev_register(&dev->dev, &cdev_brightness);
} }
void clevo_keyboard_write_state(void) void clevo_keyboard_write_state(void)