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IEEE 1003.26
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IEEE 1003.26 2003 Edition, December 10, 2003 Information Technology - Portable Operating System Interface (POSIX)- Part 26: Device Control Application Program Interface (API) [C Language]
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Description / Abstract:
This standard defines extensions to POSIX.1 {2} to support
application portability at the source-code level. It is intended to
be used by both application developers and system implementers.
The scope of this standard is to define a portable application interface for applications with realtime constraints requiring the ability to control special devices from the application itself.
The intent is to take existing realtime operating system practice and add it to the POSIX family of standards. Specifically within the scope is to define interfaces which do not preclude high-performance implementations on traditional uniprocessor realtime systems, as well as on multiprocessors. Wherever possible, the requirements of other application environments were included in the interface definition.
This standard has been defined exclusively at the source code level. Additionally, although the interfaces will be portable, some of the parameters used by an implementation may have hardware dependencies.
The scope of this standard is to define a portable application interface for applications with realtime constraints requiring the ability to control special devices from the application itself.
The intent is to take existing realtime operating system practice and add it to the POSIX family of standards. Specifically within the scope is to define interfaces which do not preclude high-performance implementations on traditional uniprocessor realtime systems, as well as on multiprocessors. Wherever possible, the requirements of other application environments were included in the interface definition.
This standard has been defined exclusively at the source code level. Additionally, although the interfaces will be portable, some of the parameters used by an implementation may have hardware dependencies.