taglinefilesource code
escape513drivers/net/ppp.cppp->escape = 0;
escape723drivers/net/ppp.cppp->escape = 0;  /* No pending escape character */
escape1190drivers/net/ppp.cppp->escape = PPP_TRANS;
escape1199drivers/net/ppp.cif (ppp->escape)
escape1214drivers/net/ppp.cppp->escape = 0;
escape1228drivers/net/ppp.cchr ^= ppp->escape;
escape1229drivers/net/ppp.cppp->escape = 0;
escape97include/linux/if_pppvar.hchar    escape;    /* 0x20 if prev char was PPP_ESC*/