SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

RE: SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

Øyvind — Wed, 20 Aug 2025 08:47:33 GMT

[quote user="Alejandro Navarro"]Just to make sure, could you please check on your side that the mentioned line effectively does not belong to the _defconfig file? If so, then we can close the issue.[/quote]

Looking through misc. commits in the repo, I can't see that CONFIG_SERIAL_HAS_DRIVER=y has ever been a part of the nrf5340dk_nrf5340_cpuapp_defconfig.

E.g. here is a comparison to tag v3.6.99-ncs2

I'm glad you were able to find the culprit.

Kind regards,
Øyvind

RE: SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

Alejandro Navarro — Mon, 18 Aug 2025 14:20:48 GMT

Hello again,

I have found out that file boards/nordic/nrf5340dk/nrf5340dk_nrf5340_cpuapp_defconfig had the following line, which should not be there (as of commit ca954a62, tag v3.7.99-ncs2-1):

CONFIG_SERIAL_HAS_DRIVER=y

Removing that line (that is, discarding changes not commited) solves the issue.

Just to make sure, could you please check on your side that the mentioned line effectively does not belong to the _defconfig file? If so, then we can close the issue.

Thank you very much in advance.

RE: SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

Alejandro Navarro — Mon, 18 Aug 2025 07:08:14 GMT

Hello,

I have not tried anything new so far. CONFIG_SERIAL_DRIVER=y is set only in the default board configuration (zephyr/boards/nordic/nrf5340dk/nrf5340dk_nrf5340_cpuapp_defconfig), so that should not be recognized as "configured by the user"; there are no more occurrences of this symbol.

How does their build configuration for this project look like? Maybe the root cause lies there.

Kind regards,

Alejandro

RE: SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

Øyvind — Fri, 15 Aug 2025 07:31:05 GMT

Hello,

I've been in contact with the responsible resources for the DevAcademy Intermediate course. They have not been able to reproduce. Any changes you have added?

[quote user="Alejandro Navarro"]add CONFIG_SERIAL_HAS_DRIVER to prj.conf[/quote]

This config is not meant to be set by user. Have you tried to search through your SDK or the menuconfig to see if this is enabled anywhere?

Kind regards,
Øyvind

RE: SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

Alejandro Navarro — Thu, 14 Aug 2025 07:24:17 GMT

Hi Dazai,

I have just tried both choices: either to add CONFIG_SERIAL_HAS_DRIVER to prj.conf, or excluding the prj.conf file from the build. In both cases I obtain the same output, the builder still complains that this option should not be user-configurable.

Accordig to the documentation, it should be automatically selected when any driver that depends on it is enabled. Hence, I have also tried adding CONFIG_SERIAL=y to the prj.conf file and including it again in the build, but the result is still the same.

RE: SERIAL_HAS_DRIVER error in DevAcademy Intermediate Lesson 9

Dazai — Wed, 13 Aug 2025 16:41:30 GMT

Based on the error message, it sounds like CONFIG_SERIAL_HAS_DRIVER=y needs to be in the project config file, but I don't know why it isn't already.

Does it build if you don't set prj.conf as the base configuration and let the SDK/toolchain use the board's defconfig?