| #ifndef __BACKPORT_LINUX_LEDS_H |
| #define __BACKPORT_LINUX_LEDS_H |
| #include_next <linux/leds.h> |
| #include <linux/version.h> |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) |
| /* |
| * Backports |
| * |
| * commit 959d62fa865d2e616b61a509e1cc5b88741f065e |
| * Author: Shuah Khan <shuahkhan@gmail.com> |
| * Date: Thu Jun 14 04:34:30 2012 +0800 |
| * |
| * leds: Rename led_brightness_set() to led_set_brightness() |
| * |
| * Rename leds external interface led_brightness_set() to led_set_brightness(). |
| * This is the second phase of the change to reduce confusion between the |
| * leds internal and external interfaces that set brightness. With this change, |
| * now the external interface is led_set_brightness(). The first phase renamed |
| * the internal interface led_set_brightness() to __led_set_brightness(). |
| * There are no changes to the interface implementations. |
| * |
| * Signed-off-by: Shuah Khan <shuahkhan@gmail.com> |
| * Signed-off-by: Bryan Wu <bryan.wu@canonical.com> |
| */ |
| #define led_set_brightness(_dev, _switch) led_brightness_set(_dev, _switch) |
| #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */ |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0) |
| /* |
| * There is no LINUX_BACKPORT() guard here because we want it to point to |
| * the original function which is exported normally. |
| */ |
| #ifdef CONFIG_LEDS_TRIGGERS |
| extern void led_trigger_remove(struct led_classdev *led_cdev); |
| #else |
| static inline void led_trigger_remove(struct led_classdev *led_cdev) {} |
| #endif |
| #endif |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) && \ |
| LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) |
| #define led_set_brightness_sync LINUX_BACKPORT(led_set_brightness_sync) |
| /** |
| * led_set_brightness_sync - set LED brightness synchronously |
| * @led_cdev: the LED to set |
| * @brightness: the brightness to set it to |
| * |
| * Set an LED's brightness immediately. This function will block |
| * the caller for the time required for accessing device registers, |
| * and it can sleep. |
| * |
| * Returns: 0 on success or negative error value on failure |
| */ |
| extern int led_set_brightness_sync(struct led_classdev *led_cdev, |
| enum led_brightness value); |
| #endif /* < 4.5 && >= 3.19 */ |
| |
| #include <backport/leds-disabled.h> |
| |
| #endif /* __BACKPORT_LINUX_LEDS_H */ |