X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=include%2Flttng%2Fabi.h;fp=include%2Flttng%2Fabi.h;h=02bcefaea5cf87abc686b821bd37351807f73666;hb=3bd6d7bde3832eb7495b2b49f3737ab992b4273b;hp=40317e86c5f89e20811434ced24b9aed46aae564;hpb=20b5f0d8c98dff8d959fe388166e43530268c6b7;p=lttng-modules.git

diff --git a/include/lttng/abi.h b/include/lttng/abi.h
index 40317e86..02bcefae 100644
--- a/include/lttng/abi.h
+++ b/include/lttng/abi.h
@@ -22,6 +22,13 @@
 
 #define LTTNG_KERNEL_ABI_SYM_NAME_LEN		256
 #define LTTNG_KERNEL_ABI_SESSION_NAME_LEN	256
+
+/*
+ * The expected iso8601 time formats are either:
+ *
+ * - YYYYmmddTHHMMSS+HHMM           (20 characters + \0)
+ * - YYYY-mm-ddTHH:MM:SS+HH:MM      (25 characters + \0)
+ */
 #define LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN	26
 
 enum lttng_kernel_abi_instrumentation {