diff options
Diffstat (limited to 'udev_sysfs.c')
| -rw-r--r-- | udev_sysfs.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/udev_sysfs.c b/udev_sysfs.c index 98383798..172f0ce1 100644 --- a/udev_sysfs.c +++ b/udev_sysfs.c @@ -306,6 +306,19 @@ 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]; |