BT848_INT_RACK
#define I2C_BITS (BT848_INT_RACK | BT848_INT_I2CDONE)
OUTL(bktr, BKTR_INT_STAT, BT848_INT_RACK | BT848_INT_I2CDONE);
if ( !x || !(INL(bktr, BKTR_INT_STAT) & BT848_INT_RACK) )
OUTL(bktr, BKTR_INT_STAT, BT848_INT_RACK | BT848_INT_I2CDONE);