LPT_BSIZE
sc->sc_inbuf = geteblk(LPT_BSIZE);
while ((n = uimin(LPT_BSIZE, uio->uio_resid)) > 0) {
sc->sc_inbuf = malloc(LPT_BSIZE, M_DEVBUF, M_WAITOK);
while ((n = uimin(LPT_BSIZE, uio->uio_resid)) != 0) {
sc->sc_inbuf = geteblk(LPT_BSIZE);
while ((n = uimin(LPT_BSIZE, uio->uio_resid)) != 0) {