SunOS man pages

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Kernel Functions for Drivers

IOC_CONVERT_FROM(9F)

NAME

IOC_CONVERT_FROM - determine if there is a need to translate M_IOCTL contents.

#include <sys/stream.h> uint_t IOC_CONVERT_FROM(struct iocblk *iocp);

Solaris DDI Specific (Solaris DDI)

The IOC_CONVERT_FROM macro is used to see if the contents of the current M_IOCTL message had its origin in a different C Language Type Model.

IOC_CONVERT_FROM() returns the following values:

IOC_ILP32: This is an LP64 kernel and the M_IOCTL originated in an ILP32 user process.
IOC_NONE: The M_IOCTL message uses the same C Language Type Model as this calling module or driver.

IOC_CONVERT_FROM() can be called from user or interrupt context.