diff options
| -rw-r--r-- | linux-core/drm_sysfs.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/linux-core/drm_sysfs.c b/linux-core/drm_sysfs.c index 92371c22..02b08534 100644 --- a/linux-core/drm_sysfs.c +++ b/linux-core/drm_sysfs.c @@ -176,6 +176,19 @@ static ssize_t dpms_show(struct device *device, return snprintf(buf, PAGE_SIZE, "%s", drm_get_dpms_name((int)dpms_status)); } +static ssize_t connected_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct drm_connector *connector = container_of(device, struct drm_connector, kdev); + struct drm_device *dev = connector->dev; + + if (connector->encoder) + return snprintf(buf, PAGE_SIZE, "connected"); + else + return snprintf(buf, PAGE_SIZE, "disconnected"); +} + static ssize_t edid_show(struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { @@ -221,6 +234,7 @@ static ssize_t modes_show(struct device *device, static struct device_attribute connector_attrs[] = { __ATTR_RO(status), + __ATTR_RO(connected), __ATTR_RO(dpms), __ATTR_RO(modes), }; |