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Commit d0d480cc authored by Johan Hovold's avatar Johan Hovold Committed by Bryan Wu
Browse files

leds: add led-class attribute-group support 



Allow led-class devices to be created with optional attribute groups.

This is needed in order to allow led drivers to create custom device
attributes in a race-free manner.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Signed-off-by: default avatarBryan Wu <cooloney@gmail.com>
parent a497c3ba

drivers/leds/led-class.c

+3 −2
Original line number Diff line number Diff line
@@ -210,7 +210,8 @@ static const struct dev_pm_ops leds_class_dev_pm_ops = { 
 */

int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)

{

	led_cdev->dev = device_create(leds_class, parent, 0, led_cdev,

	led_cdev->dev = device_create_with_groups(leds_class, parent, 0,

					led_cdev, led_cdev->groups,

					"%s", led_cdev->name);

	if (IS_ERR(led_cdev->dev))

		return PTR_ERR(led_cdev->dev);

include/linux/leds.h

+2 −0
Original line number Diff line number Diff line
@@ -63,6 +63,8 @@ struct led_classdev { 
				     unsigned long *delay_off);



	struct device		*dev;

	const struct attribute_group	**groups;



	struct list_head	 node;			/* LED Device list */

	const char		*default_trigger;	/* Trigger to use */