net/gcoap: specify range for token length

RIOT-OS · Dec 31, 2018 · 03d4230 · 03d4230
1 parent beae37c
commit 03d4230
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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)