taglinefilesource code
lp_wait_q166drivers/char/lp.cwake_up(&lp->lp_wait_q);
lp_wait_q213drivers/char/lp.cinterruptible_sleep_on(&lp->lp_wait_q);
lp_wait_q98include/linux/lp.hstruct wait_queue *lp_wait_q;