ldi_get_eventcookie(9f)

1ldi_get_eventcookie(9F)  Kernel Functions for Drivers  ldi_get_eventcookie(9F)
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NAME

6       ldi_get_eventcookie - retrieve NDI event service cookie
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SYNOPSIS

9       #include <sys/ddi_obsolete.h>
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11       int ldi_get_eventcookie(ldi_handle_t lh, char *name
12            ddi_eventcookie_t *ecp);
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INTERFACE LEVEL

16       Obsolete
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PARAMETERS

19       ldi_handle_t lh           Layered handle.
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22       char *name                null-terminated  string  containing the event
23                                 name.
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26       ddi_eventcookie_t *ecp    Pointer to the kernel event cookie.
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DESCRIPTION

30       This function is obsolete and is only maintained for compatibility. Use
31       of  this function is strongly discouraged. For equivalent functionality
32       provided by new interfaces, see ldi_ev_get_cookie(9F) and ldi_ev_regis‐
33       ter_callbacks(9F).
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36       The ldi_get_eventcookie() function queries the device tree for a cookie
37       matching the given event name and returns a reference to  that  cookie.
38       The  search is performed by calling up the device tree hierarchy of the
39       device  represented by the layered driver handle until the  request  is
40       satisfied  by  a  bus nexus driver,  or the top of the dev_info tree is
41       reached.
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44       The cookie returned by this function can be used to register a callback
45       handler with ldi_add_event_handler(9F).
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RETURN VALUES

48       DDI_SUCCESS    Cookie handle is returned.
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51       DDI_FAILURE    Request  was  not serviceable by any nexus driver in the
52                      target device's ancestral device tree hierarchy.
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CONTEXT

56       This function may be called from user or kernel contexts.
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