diff options
Diffstat (limited to 'udev/lib/libudev-device.c')
| -rw-r--r-- | udev/lib/libudev-device.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c index 731230efd0..8103c7fcc4 100644 --- a/udev/lib/libudev-device.c +++ b/udev/lib/libudev-device.c @@ -216,6 +216,20 @@ struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char * return udev_device; } +struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum) +{ + char path[UTIL_PATH_SIZE]; + + snprintf(path, sizeof(path), "%s/dev/%s/%u:%u", + udev_get_sys_path(udev), + type == 'b' ? "block" : "char", + major(devnum), minor(devnum)); + if (util_resolve_sys_link(udev, path, sizeof(path)) < 0) + return NULL; + + return udev_device_new_from_syspath(udev, path); +} + static struct udev_device *device_new_from_parent(struct udev_device *udev_device) { struct udev_device *udev_device_parent = NULL; |