提交 a84511f7 编写于 作者: I Ike Panhc 提交者: Matthew Garrett

ideapad: let camera_power node invisiable if no camera

Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>
上级 3371f481
......@@ -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
};
......
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