Add posix_devctl()
The posix_devctl() method is defined in POSIX 1003.26 and required by the FACE POSIX profiles. The only use case that needs to be supported is FIONBIO on sockets per the FACE Technical Standard.
ioctl() is not a standardized method per POSIX and is not included in the FACE Profiles.
Making operations non-blocking can also be done with fcntl() but due to RTOS qualification concerns, fcntl() is not included in the more stringent FACE profiles. Specifically, it is not in the Safety Base profile which matches the RTEMS POSIX capabilities.
This requires adding the <devctl.h> file to newlib. That has been done. I am testing my implementation but a tool update will be needed before this can be pushed to the community. This is OK because we have other reasons to move to a new gcc and newlib version soon.
![[RTEMS Logo]](/images/logo.png){kind=logo}
The code, tests, and documentation are merged.