taglinefilesource code
xhead276drivers/net/slip.cmemcpy(sl->xbuff, sl->xhead, sl->xleft);
xhead282drivers/net/slip.csl->xhead = sl->xbuff;
xhead444drivers/net/slip.csl->xhead = sl->xbuff + actual;
xhead471drivers/net/slip.cactual = tty->driver.write(tty, 0, sl->xhead, sl->xleft);
xhead473drivers/net/slip.csl->xhead += actual;
xhead61drivers/net/slip.hunsigned char         *xhead;         /* pointer to next byte to XMIT */