IF_SPI_HOST_INT_STATUS_REG
err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG,
err = spu_read_u16(card, IF_SPI_HOST_INT_STATUS_REG,