X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udev.h;h=e615b4c8bb9e6a88b78d1e1ac72686ae349e3b73;hb=bb7386472466e55f75df024d18e8da37a222bb41;hp=00f1361016d8e743d4503d8c5f08a677f7bdbf66;hpb=eb10f97f2816ae09f949060a2bb8c46b8c1788ed;p=elogind.git

diff --git a/udev.h b/udev.h
index 00f136101..e615b4c8b 100644
--- a/udev.h
+++ b/udev.h
@@ -24,6 +24,7 @@
 #define UDEV_H
 
 #include "libsysfs/libsysfs.h"
+#include <stddef.h>
 #include <sys/param.h>
 
 #define COMMENT_CHARACTER		'#'
@@ -33,6 +34,9 @@
 #define GROUP_SIZE	30
 #define MODE_SIZE	8
 
+/* length of public data */
+#define UDEVICE_LEN (offsetof(struct udevice, bus_id))
+
 struct udevice {
 	char name[NAME_SIZE];
 	char owner[OWNER_SIZE];
@@ -43,11 +47,11 @@ struct udevice {
 	unsigned int mode;	/* not mode_t due to conflicting definitions in different libcs */
 	char symlink[NAME_SIZE];
 
-	/* fields that help us in building strings */
-	unsigned char bus_id[SYSFS_NAME_LEN];
-	unsigned char program_result[NAME_SIZE];
-	unsigned char kernel_number[NAME_SIZE];
-	unsigned char kernel_name[NAME_SIZE];
+	/* private data that help us in building strings */
+	char bus_id[SYSFS_NAME_LEN];
+	char program_result[NAME_SIZE];
+	char kernel_number[NAME_SIZE];
+	char kernel_name[NAME_SIZE];
 };
 
 #define strfieldcpy(to, from) \