flash_read
err = flash_read(sc->sc_parent_dev, offset, dp->dp_len,
int flash_read(device_t, flash_off_t, size_t, size_t *, uint8_t *);
ret = flash_read(ebh->flash_dev,
ret = flash_read(ebh->flash_dev,
err = flash_read(ebh->flash_dev, data_offset, len, retlen,
ret = flash_read(ebh->flash_dev,
ret = flash_read(ebh->flash_dev,