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In computing, ioctl (an abbreviation of input/output control) is a system call for device-specific input/output operations and other operations which cannot be expressed by regular file semantics. It takes a parameter specifying a request code; the effect of a call depends completely on the request code. Request codes are often device-specific. For instance, a CD-ROM device driver which can instruct a physical device to eject a disc would provide an ioctl request code to do so. Device-independent request codes are sometimes used to give usermode access to kernel functions which are only used by core system software or still under development.
= Pup Related =
 
See also [https://en.wikipedia.org/wiki/Ioctl wikipedia page about IOCTL].
 
See also [https://www.psdevwiki.com/ps4/IOCTL PS4 IOCTL]s.
 
= List of IOCTL by kernel device =
 
The list of IOCTL is documented in the PS5 [[Devices]] page (to fusion).
 
== PUP Related ==


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== TEE Related ==
= TEE Related =


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== Manufacturing Mode Related ==
= Manu Mode Related =


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== Uncategorized ==
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