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Linux Kernel
3.7.1
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All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
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Linux Kernel
3.7.1
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#include <linux/list.h>#include <linux/spinlock.h>#include <linux/rwsem.h>#include <linux/timer.h>#include <linux/workqueue.h>Go to the source code of this file.
Data Structures | |
| struct | led_classdev |
| struct | led_info |
| struct | led_platform_data |
| struct | gpio_led |
| struct | gpio_led_platform_data |
Macros | |
| #define | LED_SUSPENDED (1 << 0) |
| #define | LED_CORE_SUSPENDRESUME (1 << 16) |
| #define | LED_BLINK_ONESHOT (1 << 17) |
| #define | LED_BLINK_ONESHOT_STOP (1 << 18) |
| #define | LED_BLINK_INVERT (1 << 19) |
| #define | DEFINE_LED_TRIGGER(x) |
| #define | DEFINE_LED_TRIGGER_GLOBAL(x) |
| #define | led_trigger_register_simple(x, y) do {} while(0) |
| #define | led_trigger_unregister_simple(x) do {} while(0) |
| #define | led_trigger_event(x, y) do {} while(0) |
| #define | ledtrig_ide_activity() do {} while(0) |
| #define | LEDS_GPIO_DEFSTATE_OFF 0 |
| #define | LEDS_GPIO_DEFSTATE_ON 1 |
| #define | LEDS_GPIO_DEFSTATE_KEEP 2 |
| #define | GPIO_LED_NO_BLINK_LOW 0 /* No blink GPIO state low */ |
| #define | GPIO_LED_NO_BLINK_HIGH 1 /* No blink GPIO state high */ |
| #define | GPIO_LED_BLINK 2 /* Please, blink */ |
Enumerations | |
| enum | led_brightness { LED_OFF = 0, LED_HALF = 127, LED_FULL = 255 } |
| enum | cpu_led_event { CPU_LED_IDLE_START, CPU_LED_IDLE_END, CPU_LED_START, CPU_LED_STOP, CPU_LED_HALTED } |
Functions | |
| int | led_classdev_register (struct device *parent, struct led_classdev *led_cdev) |
| void | led_classdev_unregister (struct led_classdev *led_cdev) |
| void | led_classdev_suspend (struct led_classdev *led_cdev) |
| void | led_classdev_resume (struct led_classdev *led_cdev) |
| void | led_blink_set (struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off) |
| void | led_blink_set_oneshot (struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off, int invert) |
| void | led_set_brightness (struct led_classdev *led_cdev, enum led_brightness brightness) |
| struct platform_device * | gpio_led_register_device (int id, const struct gpio_led_platform_data *pdata) |
| enum cpu_led_event |
| enum led_brightness |
|
read |
gpio_led_register_device - register a gpio-led device : the platform data used for the new device
Makes a copy of pdata and pdata->leds and registers a new leds-gpio device with the result. This allows to have pdata and pdata-leds in .init.rodata and so saves some bytes compared to a static struct platform_device with static platform data.
Returns the registered device or an error pointer.
Definition at line 25 of file leds-gpio-register.c.
| void led_blink_set | ( | struct led_classdev * | led_cdev, |
| unsigned long * | delay_on, | ||
| unsigned long * | delay_off | ||
| ) |
led_blink_set - set blinking with software fallback : the LED to start blinking : the time it should be on (in ms) : the time it should ble off (in ms)
This function makes the LED blink, attempting to use the hardware acceleration if possible, but falling back to software blinking if there is no hardware blinking or if the LED refuses the passed values.
Note that if software blinking is active, simply calling led_cdev->brightness_set() will not stop the blinking, use led_classdev_brightness_set() instead.
Definition at line 72 of file led-core.c.
| void led_blink_set_oneshot | ( | struct led_classdev * | led_cdev, |
| unsigned long * | delay_on, | ||
| unsigned long * | delay_off, | ||
| int | invert | ||
| ) |
led_blink_set_oneshot - do a oneshot software blink : the LED to start blinking : the time it should be on (in ms) : the time it should ble off (in ms) : blink off, then on, leaving the led on
This function makes the LED blink one time for delay_on + delay_off time, ignoring the request if another one-shot blink is already in progress.
If invert is set, led blinks for delay_off first, then for delay_on and leave the led on after the on-off cycle.
Definition at line 85 of file led-core.c.
| int led_classdev_register | ( | struct device * | parent, |
| struct led_classdev * | led_cdev | ||
| ) |
led_classdev_register - register a new object of led_classdev class. : The device to register. : the led_classdev structure for this device.
Definition at line 184 of file led-class.c.
| void led_classdev_resume | ( | struct led_classdev * | led_cdev | ) |
led_classdev_resume - resume an led_classdev. : the led_classdev to resume.
Definition at line 152 of file led-class.c.
| void led_classdev_suspend | ( | struct led_classdev * | led_cdev | ) |
led_classdev_suspend - suspend an led_classdev. : the led_classdev to suspend.
Definition at line 141 of file led-class.c.
| void led_classdev_unregister | ( | struct led_classdev * | led_cdev | ) |
led_classdev_unregister - unregisters a object of led_properties class. : the led device to unregister
Unregisters a previously registered via led_classdev_register object.
Definition at line 227 of file led-class.c.
| void led_set_brightness | ( | struct led_classdev * | led_cdev, |
| enum led_brightness | brightness | ||
| ) |
1.8.2