rtapi_byteorder.h − RTAPI wrappers for linux kernel functionality
Defined to 1 if the platform is big-endian, 0 otherwise
Defined to 1 if the platform is little-endian, 0 otherwise
Defined to 1 if the platform double-precision value is big-endian, 0 otherwise.
In kernel space, each rtapi_xxx or RTAPI_XXX identifier is mapped to the underlying kernel functionality, if available.
In userspace, or in kernels where the underlying functionality is not provided by a kernel, generally another implementation--possibly with reduced functionality--is provided. (For example, the userspace implementation for rtapi_byteorder_register always succeeds)
May be used at any time.
As in Linux.