SAR_CFG_TXUIE    2978 drivers/atm/idt77252.c 	    SAR_CFG_TXUIE |	/* interrupt on transmit underrun       */
SAR_CFG_TXUIE    3019 drivers/atm/idt77252.c 	    SAR_CFG_TXUIE |	/* interrupt on xmit underrun    */