OHCI1394_IT_DATA_Q0_sy_MASK
return (le32_to_cpu(data[0]) & OHCI1394_IT_DATA_Q0_sy_MASK) >> OHCI1394_IT_DATA_Q0_sy_SHIFT;
data[0] &= cpu_to_le32(~OHCI1394_IT_DATA_Q0_sy_MASK);
data[0] |= cpu_to_le32((sync << OHCI1394_IT_DATA_Q0_sy_SHIFT) & OHCI1394_IT_DATA_Q0_sy_MASK);