Bug Report: I2C TWI driver always returns -EIO due to NRFX_SUCCESS comparison mismatchhttps://devzone.nordicsemi.com/f/nordic-q-a/126148/bug-report-i2c-twi-driver-always-returns--eio-due-to-nrfx_success-comparison-mismatchAffecte d SDK : n RF Connect SDK v 3.2.0 (Zephyr v 4. 2.9 9) File : z ephyr/drivers/i2c /i2c_nrf x_twi.c Description The I2C TWI driver always returns - EIO for every transfer, even when the transfer completes successfully. This is cause d by aen-USTelligent Community 13Tue, 16 Dec 2025 14:54:19 GMTRE: Bug Report: I2C TWI driver always returns -EIO due to NRFX_SUCCESS comparison mismatchhttps://devzone.nordicsemi.com/thread/557108?ContentTypeID=1Tue, 16 Dec 2025 14:54:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7cf3a400-c32b-4912-8a3d-401f8f3dcab2nrbrook<p>Ok thanks. It&#39;s unfortunate this PR didn&#39;t make it in before release, it would have saved some time debugging!</p><div style="clear:both;"></div>RE: Bug Report: I2C TWI driver always returns -EIO due to NRFX_SUCCESS comparison mismatchhttps://devzone.nordicsemi.com/thread/557105?ContentTypeID=1Tue, 16 Dec 2025 14:49:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fb09f6bc-36b9-4031-9157-7b630b84ce9cBenjamin<p>Hi,<br />Thanks for the feedback Nick!&nbsp;There is a&nbsp;<a href="https://github.com/nrfconnect/sdk-zephyr/pull/3624">PR</a>&nbsp;for this issue.</p> <p><br />Best regards,<br />Benjamin</p><div style="clear:both;"></div>RE: Bug Report: I2C TWI driver always returns -EIO due to NRFX_SUCCESS comparison mismatchhttps://devzone.nordicsemi.com/thread/557073?ContentTypeID=1Tue, 16 Dec 2025 11:24:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:848e4d1d-c85f-47c8-87f2-b1088fd51859pcspets<p>Indeed! I reached the same place during my investigation, but didn&#39;t figure out a fix yet. This solved the problem.</p><div style="clear:both;"></div>