gp_linux_backlight.h File Reference

A sysfs backlight driver for a Linux. More...

#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	gp_linux_backlight
	Linux backlight sysfs driver. More...

Functions
struct gp_linux_backlight *	gp_linux_backlight_init (void)
	Initialize linux backlight driver.
void	gp_linux_backlight_exit (struct gp_linux_backlight *self)
	Destroy Linux backlight driver.
int	gp_linux_backlight_inc (struct gp_linux_backlight *self)
	Increase backlight intensity.
int	gp_linux_backlight_dec (struct gp_linux_backlight *self)
	Decrease backlight intensity.
int	gp_linux_backlight_get (struct gp_linux_backlight *self)
	Returns backlight intensity in percents.

Detailed Description

A sysfs backlight driver for a Linux.

Definition in file gp_linux_backlight.h.

Function Documentation

gp_linux_backlight_dec()

int gp_linux_backlight_dec

(

struct gp_linux_backlight *

self

)

Decrease backlight intensity.

Parameters

self	A Linux backlight driver.\

Returns

A new brightness in percents.

gp_linux_backlight_exit()

void gp_linux_backlight_exit

(

struct gp_linux_backlight *

self

)

Destroy Linux backlight driver.

Parameters

self	A Linux backlight driver.

gp_linux_backlight_get()

int gp_linux_backlight_get

(

struct gp_linux_backlight *

self

)

Returns backlight intensity in percents.

Parameters

self	A Linux backlight driver.

Returns

A brightness in percents.

gp_linux_backlight_inc()

int gp_linux_backlight_inc

(

struct gp_linux_backlight *

self

)

Increase backlight intensity.

Parameters

self	A Linux backlight driver.

Returns

A new brightness in percents.

gp_linux_backlight_init()

struct gp_linux_backlight * gp_linux_backlight_init

(

void

)

Initialize linux backlight driver.

Looks up a backlight driver in the /sys/class/backlight/ directory.

Returns

An initialized backlight driver or NULL if not found.