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| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2009-09-20 19:44:47 +0200 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2009-09-26 17:48:06 +0200 |
| commit | 89dfc28ccbff6521a4df9dc3699a94bbde11a6ed (patch) | |
| tree | 745fdfba71be343ba9c443cd65c1c757dbeaf53a | |
| parent | backlight/eeepc-laptop: Update the backlight state when we change brightness (diff) | |
| download | linux-89dfc28ccbff6521a4df9dc3699a94bbde11a6ed.tar.xz linux-89dfc28ccbff6521a4df9dc3699a94bbde11a6ed.zip | |
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>
| -rw-r--r-- | drivers/video/backlight/backlight.c | 1 |
1 files changed, 1 insertions, 0 deletions
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, |