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Date:	Thu, 19 Jan 2012 17:49:25 -0800
From:	"Kim, Milo" <>
To:	"Linus Walleij" <>,
cc:	"" <>,
	"" <>
Subject: [PATCH 4/7] leds-lm3530: add 'lm3530_mode_get()' in the lm3530
 device attribute

To get information about brightness control mode, lm3530_mode_get() is added.

Signed-off-by: Milo(Woogyom) Kim <>

diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c
index ba2bb7e..0a42207 100644
--- a/drivers/leds/leds-lm3530.c
+++ b/drivers/leds/leds-lm3530.c
@@ -275,6 +275,17 @@ static void lm3530_brightness_set(struct led_classdev *led_cdev,
+static ssize_t lm3530_mode_get(struct device *dev,
+			struct device_attribute *attr,
+			char *buf)
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct lm3530_data *drvdata =
+	    container_of(led_cdev, struct lm3530_data, led_dev);
+	enum lm3530_mode m = drvdata->mode;
+	return sprintf(buf, "%s\n", mode_map[m].mode);
 static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute
 				   *attr, const char *buf, size_t size)
@@ -302,7 +313,7 @@ static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute
 	return sizeof(drvdata->mode);
-static DEVICE_ATTR(mode, 0644, NULL, lm3530_mode_set);
+static DEVICE_ATTR(mode, 0644, lm3530_mode_get, lm3530_mode_set);
 static int __devinit lm3530_probe(struct i2c_client *client,
 			   const struct i2c_device_id *id)

Best Regards,
Milo (Woogyom) Kim
Texas Instruments Incorporated

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