When the community or a third-party developer refers to a "patched" version of the ACHI IR6500 software, they typically mean one of four modifications (or a combination thereof).
Once you apply a third-party patch, you void any remaining warranty or support agreement with ACHI. Your vendor will rightfully refuse assistance.
Can you legally use a patched driver for the ACHI IR6500? The answer depends on jurisdiction and purpose.
The ethical path: First, contact ACHI (or the successor company). Request an official modern driver. Many legacy hardware makers will release an update if there is demand. Failing that, consider buying an alternative modern IR bridge from FTDI or Moxa. Only as a last resort should you deploy a community patch.
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