SEG_INTR_STATUS_REG
status = readl(iadev->seg_reg+SEG_INTR_STATUS_REG);
writew(TRANSMIT_DONE, iadev->seg_reg+SEG_INTR_STATUS_REG);
readw(iadev->seg_reg+SEG_INTR_STATUS_REG);
writew(TRANSMIT_DONE, iadev->seg_reg+SEG_INTR_STATUS_REG);
writew(TRANSMIT_DONE, dev->seg_reg+SEG_INTR_STATUS_REG);
writew(TRANSMIT_DONE, iadev->seg_reg+SEG_INTR_STATUS_REG);