linguini1 commented on issue #15787: URL: https://github.com/apache/nuttx/issues/15787#issuecomment-2644435504
> The process of the selftest is quite straightforward: `orb_ioctl -> ioctl -> sensor_ioctl -> selftest.` Have you enabled SENSORS_RPMSG for multicore control? If not, when your upper layer calls orb_ioctl, is there a possibility that the file descriptor (fd) passed in is incorrect? I did take a look at this through the call graph and I'm unsure where this would cause an issue as well. I added some log statements to the `ioctl` implementation of `sensor.c` to see the value of `ret` once the lowerhalf `selftest` was called. The return value was what I expected. If I change the value of `ret` within the `sensor.c` `ioctl` implementation, the hang also stops. This is confusing me because I really don't see that value used anywhere else. I know the file descriptor is valid because other `ioctl` calls that pass-through to the lower-half `control` function work without issue. I also do not have `SENSORS_RPMSG` enabled, but I am working on a single core right now. > "orb_ioctl" is actually equivalent to "ioctl" in that it requires using errno to determine specific error codes. However, we have internally modified it to directly return errno. I will push this pull request (PR) shortly. Been a long day and it appears I forgot how `ioctl` works! I think setting errno is fine then, especially since it adheres to `ioctl` closer. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
