ERR_INVARG = -6, /**< invalid argument */
ERR_TIMEOUT = -7, /**< timeout */
ERR_MEM = -8, /**< out of memory */
- ERR_NOTIMPL = -9 /**< not implemented */
+ ERR_NOTIMPL = -9, /**< not implemented */
+ ERR_BADREPLY = -10, /**< bad reply */
+ ERR_UNKNOWN = -11 /**< unknown error */
};