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-rw-r--r--include/fuse_lowlevel.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/fuse_lowlevel.h b/include/fuse_lowlevel.h
index 330d40e..8ff111a 100644
--- a/include/fuse_lowlevel.h
+++ b/include/fuse_lowlevel.h
@@ -532,6 +532,13 @@ struct fuse_lowlevel_ops {
* future calls to open and release will also succeed without being
* sent to the filesystem process.
*
+ * To get this behavior without providing an opendir handler, you may
+ * set FUSE_CAP_NO_OPEN_SUPPORT in `fuse_conn_info.want` on supported
+ * kernels to automatically get the zero message open().
+ *
+ * If this callback is not provided and FUSE_CAP_NO_OPEN_SUPPORT is not
+ * set in `fuse_conn_info.want` then an empty reply will be sent.
+ *
* Valid replies:
* fuse_reply_open
* fuse_reply_err
@@ -705,6 +712,13 @@ struct fuse_lowlevel_ops {
* process. In addition, the kernel will cache readdir results
* as if opendir returned FOPEN_KEEP_CACHE | FOPEN_CACHE_DIR.
*
+ * To get this behavior without providing an opendir handler, you may
+ * set FUSE_CAP_NO_OPENDIR_SUPPORT in `fuse_conn_info.want` on supported
+ * kernels to automatically get the zero message opendir().
+ *
+ * If this callback is not provided and FUSE_CAP_NO_OPENDIR_SUPPORT is
+ * not set in `fuse_conn_info.want` then an empty reply will be sent.
+ *
* Valid replies:
* fuse_reply_open
* fuse_reply_err