Add support for getting led brightness directly from
the hardware. Currently we don't need it, but it is needed
to support keyboard backlight/led.
Signed-off-by: Corentin Chary <corentincj@xxxxxxxxxx>
---
drivers/platform/x86/asus-laptop.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 2344950..88cc9a1 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -246,12 +246,15 @@ static struct workqueue_struct *led_workqueue;
#define ASUS_LED(object, ledname) \
static void object##_led_set(struct led_classdev *led_cdev, \
enum led_brightness value); \
+ static enum led_brightness object##_led_get( \
+ struct led_classdev *led_cdev); \
static void object##_led_update(struct work_struct *ignored); \
static int object##_led_wk; \
static DECLARE_WORK(object##_led_work, object##_led_update); \
static struct led_classdev object##_led = { \
.name = "asus::" ledname, \
.brightness_set = object##_led_set, \
+ .brightness_get = object##_led_get, \
}
ASUS_LED(mled, "mail");
@@ -399,6 +402,11 @@ static void write_status(acpi_handle handle, int out, int mask)
{ \
int value = object##_led_wk; \
write_status(object##_set_handle, value, (mask)); \
+ } \
+ static enum led_brightness object##_led_get( \
+ struct led_classdev *led_cdev) \
+ { \
+ return led_cdev->brightness; \
}
ASUS_LED_HANDLER(mled, MLED_ON);
--
1.6.4
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