rtas

RTAS(2)                        System Calls Manual                       RTAS(2)



NAME
       rtas - Allows userspace to call RTAS (Run Time Abstraction Services)

SYNOPSIS
       int ppc_rtas (struct rtas_args *uargs);


DESCRIPTION
       ppc_rtas enables userspace manipulation of the RunTime Abstraction
       Services (RTAS). RTAS provides for a portable method of access and
       setting system information. For example, you could gather information on
       various system sensors and set poweron values. RTAS is accessed via the
       /proc entry called "rtas". Manipulations on RTAS are implemented via
       command line arguments on /proc/rtas.  The values for uargs vary greatly.
       For more information, see the view/arch/ppcKconfig file.


RETURN VALUE
       rtas returns 0 on success; otherwise it returns one of the errors listed
       in the "Errors" section.


ERRORS
       -EPERM User does not have CAP_SYS_ADMIN capabilities.


       -EFAULT
              Problem copying uargs values to/from user space.


       -EINVAL
              Either number of uargs passed in too large or size of uargs array
              too large.


AUTHOR
       Niki Rahimi.



                                                                         RTAS(2)