LDI_EV_GET_COOKIE(9F) Kernel Functions for Drivers LDI_EV_GET_COOKIE(9F)
ldi_ev_get_cookie - get an LDI event cookie for a specified event
#include <sys/sunldi.h> int ldi_ev_get_cookie
, char *evname
, ldi_ev_cookie_t *cookiep
illumos DDI specific (illumos DDI)
PARAMETERS ldi_handle_t lh
A layered handle representing the device for which the event
notification was requested. char *evname
The string name of the event. ldi_ev_cookie_t *cookiep
A pointer to type ldi_ev_cookie_t
. Contains a pointer to the event
cookie on return.
function accepts the string name of a state
change event affecting the device represented by the layered driver
" and returns an opaque cookie on success. The call is
successful if the framework supports event notification for the event
named by "evname
". If successful, the function returns an opaque cookie
through the "cookiep
" parameter. The cookie is required in subsequent
calls for registering callbacks on events.
The following two LDI events are currently defined: LDI_EV_OFFLINE
The device is moving to the offline state. LDI_EV_DEGRADE
The device is moving to the degraded state. ldi_ev_get_cookie()
also accepts the string name of any events defined
for NDI event services. For such events, ldi_ev_get_cookie()
(which is now obsolete).
The return values for this function are: LDI_EV_SUCCESS
The event cookie was created successfully. LDI_EV_FAILURE
An error occurred and the cookie was not created.
This function can be called from user and kernel contexts only.
SEE ALSO ldi_ev_register_callbacks(9F)
August 21, 2007 LDI_EV_GET_COOKIE(9F)