start_item() will tell the sequencer that your sequence is available for arbitration by the sequencer. When it returns, your sequence should then set the variables in your sequence_item to the required values (i.e. by randomization or manual methods). finish_item() will then send the sequence_item to the driver.
When you re-use the same sequence_item handle, all the variables that you defined will remain as they were previously set.
There are several things you can do:
- You can create() a new sequence item, but this has some additional overhead which can impact performance.
- Randomize the sequence_item again and/or manually set the sequence_item variables
What is your concern about the sequence_item having the same values from the previous sequence?