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leds: Add generic GPIO LED driver

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This patch adds support for GPIO connected leds via the new GPIO framework.

Information about leds (gpio, polarity, name, default trigger) is passed
to the driver via platform_data.

Signed-off-by: Raphael Assenat <raph@8d.com>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
This commit is contained in:
Raphael Assenat
2007-02-27 19:49:53 +00:00
committed by Richard Purdie
parent 8f41958bdd
commit 22e03f3b58
4 changed files with 197 additions and 0 deletions
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14
include/linux/leds.h
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@ -110,4 +110,18 @@ extern void ledtrig_ide_activity(void);
#define ledtrig_ide_activity() do {} while(0)
#endif
/* For the leds-gpio driver */
struct gpio_led {
const char *name;
char *default_trigger;
unsigned gpio;
u8 active_low;
};
struct gpio_led_platform_data {
int num_leds;
struct gpio_led *leds;
};
#endif /* __LINUX_LEDS_H_INCLUDED */