[RTEMS Project] #2836: Add posix_devctl()

[RTEMS trac]

#2836: Add posix_devctl()
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 Reporter:  joel.sherrill  |      Owner:  joel.sherrill
     Type:  enhancement    |     Status:  new
 Priority:  normal         |  Milestone:  4.12
Component:  cpukit         |    Version:  4.12
 Severity:  normal         |   Keywords:
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 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.

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Ticket URL: <http://devel.rtems.org/ticket/2836>
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