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modbus scan_interval: 0 is correct configuration#112619

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janiversen merged 1 commit into
home-assistant:devfrom
janiversen:solve_112616
Mar 7, 2024
Merged

modbus scan_interval: 0 is correct configuration#112619
janiversen merged 1 commit into
home-assistant:devfrom
janiversen:solve_112616

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Breaking change

Proposed change

When scan_interval < 5 a warning is issued, that it may cause stability issues, however 0 is allowed for read-once entities.

Type of change

  • Dependency upgrade
  • Bugfix (non-breaking change which fixes an issue)
  • New integration (thank you!)
  • New feature (which adds functionality to an existing integration)
  • Deprecation (breaking change to happen in the future)
  • Breaking change (fix/feature causing existing functionality to break)
  • Code quality improvements to existing code or addition of tests

Additional information

Checklist

  • The code change is tested and works locally.
  • Local tests pass. Your PR cannot be merged unless tests pass
  • There is no commented out code in this PR.
  • I have followed the development checklist
  • I have followed the perfect PR recommendations
  • The code has been formatted using Ruff (ruff format homeassistant tests)
  • Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

If the code communicates with devices, web services, or third-party tools:

  • The manifest file has all fields filled out correctly.
    Updated and included derived files by running: python3 -m script.hassfest.
  • New or updated dependencies have been added to requirements_all.txt.
    Updated by running python3 -m script.gen_requirements_all.
  • For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
  • Untested files have been added to .coveragerc.

To help with the load of incoming pull requests:

Comment on lines +390 to +394
if no_entities:
err = f"Modbus {hub[CONF_NAME]} is instable without entities, please add entities!"
_LOGGER.warning(err)
# Ensure timeout is not started/handled.
hub[CONF_TIMEOUT] = -1
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What would be a use case of adding a hub without adding entities?

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In a HA core only, none !

But there are a couple of custom components, who use a base modbus configuration, to add there own configuration on top...and thus use the modbus integration code instead of duplicating it (duplicating it gives nasty dependencies because both use the same library).

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But when custom components add entities, is it still unstable?

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No, it is only when running without entities....otherwise I would have issued an error and stopped the loading.

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Hang on, I made a mistake....the discussion we are having belong to PR #11618, and should not be here...

this one is just a single "if".

Sorry for the mistake, give me 2 seconds, and you will have a commit that correct this PR.

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@joostlek updated to be correct....when I created the branch, I forgot to start from dev :-( my mistake.

@janiversen janiversen merged commit 714777e into home-assistant:dev Mar 7, 2024
@github-actions github-actions Bot locked and limited conversation to collaborators Mar 8, 2024
@janiversen janiversen deleted the solve_112616 branch March 9, 2024 11:09
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Modbus: scan_interval:0 detected as invalid

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