SetAttr
req.SetAttr(stateID, stateSeq, attrs, attrCount);
req.SetAttr(stateID, stateSeq, attrs, attrCount);
result = reply.SetAttr();
status_t SetAttr();
status_t SetAttr(const uint32* id, uint32 stateSeq,
status_t SetAttr(const struct termios& attr);