Signed-off-by: Ike Panhc <ike.pan@xxxxxxxxxxxxx>
---
drivers/platform/x86/ideapad-laptop.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 42b9ba7..1612abd 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -38,6 +38,7 @@
#define CFG_BT_BIT (16)
#define CFG_3G_BIT (17)
#define CFG_WIFI_BIT (18)
+#define CFG_CAMERA_BIT (19)
struct ideapad_private {
struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
@@ -208,7 +209,24 @@ static struct attribute *ideapad_attributes[] = {
NULL
};
+static mode_t ideapad_is_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int idx)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct ideapad_private *priv = dev_get_drvdata(dev);
+ bool supported;
+
+ if (attr == &dev_attr_camera_power.attr)
+ supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
+ else
+ supported = true;
+
+ return supported ? attr->mode : 0;
+}
+
static struct attribute_group ideapad_attribute_group = {
+ .is_visible = ideapad_is_visible,
.attrs = ideapad_attributes
};
--
1.7.4.1
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