nec7210_locking_iomem_write_byte
void nec7210_locking_iomem_write_byte(struct nec7210_priv *priv, u8 data,
nec7210_locking_iomem_write_byte(priv, data, register_num);
EXPORT_SYMBOL(nec7210_locking_iomem_write_byte);
nec_priv->write_byte = nec7210_locking_iomem_write_byte;