net/gcoap: specify range for token length

2018-12-31 06:13:55 -05:00 · 2018-12-31 06:13:55 -05:00 · 03d4230d3a
commit 03d4230d3a
parent beae37cf18
1 changed files with 2 additions and 0 deletions
--- a/sys/include/net/gcoap.h
+++ b/sys/include/net/gcoap.h
@ -279,6 +279,8 @@ extern "C" {
 /**
 * @ingroup net_gcoap_conf
 * @brief   Length in bytes for a token
+ *
+ * Value must be in the range 0 to @ref GCOAP_TOKENLEN_MAX.
 */
 #ifndef GCOAP_TOKENLEN
 #define GCOAP_TOKENLEN          (2)