TWA_CMD_DATA_IN
tr->tr_flags = TWA_CMD_DATA_IN;
if (tr->tr_flags == TWA_CMD_DATA_IN) {
if (tr->tr_flags & TWA_CMD_DATA_IN)
if ((tr->tr_flags & TWA_CMD_DATA_IN) != 0)
tr->tr_flags |= TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
tr->tr_flags = TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
tr->tr_flags = TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
if (tr->tr_flags & TWA_CMD_DATA_IN)
tr->tr_flags |= TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;