1 files changed, 78 insertions, 0 deletions
diff --git a/test/get_classdev_parent.c b/test/get_classdev_parent.c
new file mode 100644
index 0000000..56be44d
--- /dev/null
+++ b/test/get_classdev_parent.c
@@ -0,0 +1,78 @@
+/*
+ * get_classdev_parent.c
+ *
+ * Utility to get a given class device as well as its parent if available
+ *
+ * Copyright (C) IBM Corp. 2003
+ *
+ *      This program is free software; you can redistribute it and/or modify it
+ *      under the terms of the GNU General Public License as published by the
+ *      Free Software Foundation version 2 of the License.
+ *
+ *      This program is distributed in the hope that it will be useful, but
+ *      WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *      General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License along
+ *      with this program; if not, write to the Free Software Foundation, Inc.,
+ *      675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "libsysfs.h"
+
+int main(int argc, char *argv[])
+{
+	struct sysfs_class_device *cdev = NULL, *parent = NULL;
+	struct sysfs_attribute *attr = NULL;
+	struct dlist *attrlist = NULL;
+	struct sysfs_device *device = NULL;
+	struct sysfs_driver *driver = NULL;
+
+	/* FIXME: edit this path to any valid path on your system to test */
+	cdev = sysfs_open_class_device_path("/sys/block/sda/sda1");
+	if (cdev == NULL) {
+		fprintf(stdout, "Class device not found\n");
+		return 1;
+	}
+	
+	fprintf(stdout, "Class device \"%s\"\n", cdev->name);
+	
+	attrlist = sysfs_get_classdev_attributes(cdev);
+	if (attrlist != NULL) {
+		dlist_for_each_data(attrlist, attr, struct sysfs_attribute) 
+			fprintf(stdout, "\t%-20s : %s", 
+					attr->name, attr->value);
+	}
+	fprintf(stdout, "\n");
+		
+	device = sysfs_get_classdev_device(cdev);
+	if (device)
+		fprintf(stdout, "\tDevice : \"%s\"\n", cdev->sysdevice->bus_id);
+	driver = sysfs_get_classdev_driver(cdev);
+	if (driver)
+		fprintf(stdout, "\tDriver : \"%s\"\n", cdev->driver->name);
+
+	parent = sysfs_get_classdev_parent(cdev);
+	if (parent != NULL) {
+		fprintf(stdout, "Device \"%s\"'s parent is \"%s\"\n", 
+				cdev->name, parent->name);
+		attrlist = sysfs_get_classdev_attributes(parent);
+		if (attrlist != NULL) {
+			dlist_for_each_data(attrlist, attr, 
+					struct sysfs_attribute) 
+				fprintf(stdout, "\t%-20s : %s", 
+						attr->name, attr->value);
+		}
+		fprintf(stdout, "\n");
+	} else
+		fprintf(stdout, "No parent device found\n");
+
+	sysfs_close_class_device(cdev);
+	return 0;
+}
+