Minor changes.

include/ecrt.h

@@ -145,6 +145,8 @@ int ecrt_domain_state(ec_domain_t *domain);
  *  Slave Methods
  *****************************************************************************/
 
+/* there SDO functions are deprecated! */
+
 int ecrt_slave_sdo_read_exp8(ec_slave_t *slave, uint16_t sdo_index,
                               uint8_t sdo_subindex, uint8_t *value);
 int ecrt_slave_sdo_read_exp16(ec_slave_t *slave, uint16_t sdo_index,

master/mailbox.c

@@ -79,7 +79,7 @@ uint8_t *ec_slave_mbox_prepare_send(ec_slave_t *slave, /**< slave */
 
     EC_WRITE_U16(command->data,     size); // mailbox service data length
     EC_WRITE_U16(command->data + 2, slave->station_address); // station address
-    EC_WRITE_U8 (command->data + 4, 0x00); // hhannel & priority
+    EC_WRITE_U8 (command->data + 4, 0x00); // channel & priority
     EC_WRITE_U8 (command->data + 5, type); // underlying protocol type
 
     return command->data + 6;