From 89dfc28ccbff6521a4df9dc3699a94bbde11a6ed Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Date: Sun, 20 Sep 2009 14:44:47 -0300 Subject: [PATCH] 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: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com> --- drivers/video/backlight/backlight.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 6e1446ae7f52..6615ac7fa60a 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -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, -- GitLab