Hi NiHaoMike,
The reason for my post is I intend to use Cypress 'ez-click' software. Cypress wants over £100 for programmer. I don't know if it needs to auto-detect a specific Cypress I2C bridge to operate. I was looking for confirmation that a CY8CKIT-059 (£10) does indeed work with said SW.
Have you used ez-click and the MCP2221A, are your suggesting it from hands-on.
thanks