Fixed Flow Control Setup on Serial Interface

[natankeddem]

Hello,
When interfacing with some serial equipment that utilized DTR and DSR for flow control, I noticed I was getting communication corruption and errors. I reimplemented this project using only pyserial and didn't have any issue which is weird because pyvisa_py uses this same library on the backend. I noticed that flow control state was not being properly set, it was passing along the internal pyvisa_py constants instead of a bool which pyserial is expecting for these settings. Once I cast the values to bool my errors were fixed.

• Closes # (insert issue number if relevant)
• Executed black . && isort -c . && flake8 with no errors
• The change is fully covered by automated unit tests
• Documented in docs/ as appropriate
• Added an entry to the CHANGES file

[MatthieuDartiailh]

Thanks for your PR. Could you add an entry to the release notes ?

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 24.41%. Comparing base (2937877) to head (481875f).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pyvisa_py/serial.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #483   +/-   ##
=======================================
  Coverage   24.41%   24.41%           
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  Files          23       23           
  Lines        3514     3514           
  Branches      401      401           
=======================================
  Hits          858      858           
  Misses       2651     2651           
  Partials        5        5           

Flag	Coverage Δ
unittests	24.41% <0.00%> (ø)

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[MatthieuDartiailh]

Thanks again for your contribution.

[natankeddem]

Thanks again for your contribution.

Thank you for the quick merge.