tag	line	file	source code
SDLC	950	drivers/char/scc.c	wr(scc,R4,X1CLK|SDLC);    /* *1 clock, SDLC mode */
SDLC	1122	drivers/net/pi2.c	wrtscc(lp->cardbase, cmd, R4, SDLC | X1CLK);