1 files changed, 2 insertions, 1 deletions
diff --git a/error.h b/error.h
index cbf2d98..20d1c09 100644
--- a/error.h
+++ b/error.h
@@ -21,7 +21,8 @@ enum {
     PCILIB_ERROR_NOTAVAILABLE = ENAVAIL,
     PCILIB_ERROR_NOTINITIALIZED = EBADFD,
     PCILIB_ERROR_TOOBIG = EFBIG,
-    PCILIB_ERROR_OVERWRITTEN = ESTALE
+    PCILIB_ERROR_OVERWRITTEN = ESTALE,
+    PCILIB_ERROR_BUSY = EBUSY
 } pcilib_errot_t;