RTAPI_LIST(3)

NAME
rtapi_list - 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.