NAME

       rtapi_list.h - RTAPI wrappers for linux kernel functionality

SYNTAX

       #include <rtapi_list.h>

       struct rtapi_list_head;

       void rtapi_list_add(struct rtapi_list_head *new_, struct rtapi_list_head *head);

       void rtapi_list_add_tail(struct rtapi_list_head *new_, struct rtapi_list_head *head);

       void rtapi_list_del(struct rtapi_list_head *entry);

       void RTAPI_INIT_LIST_HEAD(struct rtapi_list_head *entry);

       rtapi_list_for_each(pos, head) { ... }

       rtapi_list_entry(ptr, type, member)

DESCRIPTION

       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_device_register  always
       succeeds)

REALTIME CONSIDERATIONS

       Call  from  init/cleanup code and from realtime tasks.  These functions will cause illegal
       instruction exceptions in non-realtime components, as well as in uspace rtapi_app when  it
       is not setuid root.

RETURN VALUE

       As in Linux.

SEE ALSO