use WRITE_END/READ_END for the pipe index

Signed-off-by: Kay Sievers <kay.sievers@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/udev_utils.h b/udev_utils.h
index ad415641d8..9ff79113b1 100644
--- a/udev_utils.h
+++ b/udev_utils.h
@@ -26,6 +26,10 @@
 
 #define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
 
+/* pipes */
+#define READ_END		0
+#define WRITE_END		1
+
 struct name_entry {
 	struct list_head node;
 	char name[PATH_SIZE];