increase kernel uevent buffer size

[elogind.git] / udev_sysfs.c

diff --git a/udev_sysfs.c b/udev_sysfs.c
index 983837980338e8de0a219b991063689188f08413..8de523dadf66abc3bbf0198c9dac01036ca7f608 100644 (file)
--- a/udev_sysfs.c
+++ b/udev_sysfs.c
@@ -26,6 +26,7 @@
 #include <fcntl.h>
 #include <ctype.h>
 #include <errno.h>
+#include <sys/stat.h>
 
 #include "udev.h"
 
@@ -274,7 +275,7 @@ struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev)
        if (strncmp(parent_devpath, "/class", 6) == 0) {
                pos = strrchr(parent_devpath, '/');
                if (pos == &parent_devpath[6] || pos == parent_devpath) {
-                       dbg("class top level, look for device link");
+                       dbg("/class top level, look for device link");
                        goto device_link;
                }
        }
@@ -306,6 +307,19 @@ device_link:
        return sysfs_device_get(parent_devpath);
 }
 
+struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem)
+{
+       struct sysfs_device *dev_parent;
+
+       dev_parent = sysfs_device_get_parent(dev);
+       while (dev_parent != NULL) {
+               if (strcmp(dev_parent->subsystem, subsystem) == 0)
+                       return dev_parent;
+               dev_parent = sysfs_device_get_parent(dev_parent);
+       }
+       return NULL;
+}
+
 char *sysfs_attr_get_value(const char *devpath, const char *attr_name)
 {
        char path_full[PATH_SIZE];