Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 89dfc28c authored by Henrique de Moraes Holschuh's avatar Henrique de Moraes Holschuh Committed by Richard Purdie
Browse files

backlight: extend event support to also support poll() 



Extend the backlight event support to also allow the use of
poll()/select() on actual_brightness.

We already have the entire event hookup anyway, adding a single
function call in one line to get functionality like that is a really
good deal.

Signed-off-by: default avatarHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>
parent d822d5c2

drivers/video/backlight/backlight.c

+1 −0
Original line number Diff line number Diff line
@@ -91,6 +91,7 @@ static void backlight_generate_event(struct backlight_device *bd, 
	}

	envp[1] = NULL;

	kobject_uevent_env(&bd->dev.kobj, KOBJ_CHANGE, envp);

	sysfs_notify(&bd->dev.kobj, NULL, "actual_brightness");

}



static ssize_t backlight_show_power(struct device *dev,