convension about type argument on _IO macro

Colin Vidal colin at
Sat Jul 2 16:34:24 EDT 2016

Hi all,

In LDDv3, chapter 6, on ioctl, macros IOCTQUANTIUM is defined with

IOCT_* tells that a value (given directly as value through the argument)
is set to the device. However, no type is given to this macro.

It is not a big deal since this macro is just a helper to generate
identifiers, but, I wonder if there is any convention telling that we
should precise an argument only if it's a pointer ?


- Colin

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