iichid_cmd_read
(void)iichid_cmd_read(sc, sc->intr_buf, 0, NULL);
error = iichid_cmd_read(sc, sc->intr_buf, sc->intr_bufsize, &actual);
error = iichid_cmd_read(sc, sc->intr_buf, sc->intr_bufsize, &actual);
error = iichid_cmd_read(sc, sc->intr_buf, sc->intr_bufsize, &actual);
error = iichid_cmd_read(sc, tmpbuf, maxlen + 2, actlen);