SCA 285 drivers/net/wan/hdlc_ppp.c { STA|0 ,IRC|SCR|SCA|5, 2 , SCA|5 ,SCA|6, SCA|5 ,SCR|SCA|5}, /* RCR+ */ SCA 332 drivers/net/wan/hdlc_ppp.c if (action & SCA) /* send Configure-Ack */