ddi_intr_set_mask(9F)													     ddi_intr_set_mask(9F)

NAME

       ddi_intr_set_mask, ddi_intr_clr_mask - set or clear mask for a given interrupt

SYNOPSIS

       #include <sys/types.h>
       #include <sys/conf.h>
       #include <sys/ddi.h>
       #include <sys/sunddi.h>

       int ddi_intr_set_mask(ddi_intr_handle_t h);

       int ddi_intr_clr_mask(ddi_intr_handle_t h);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

       h	       DDI interrupt handle

       The  ddi_intr_set_mask() function masks the given interrupt pointed to by the device's interrupt handle h if the device or host bridge sup-
       ports the masking operation. The ddi_intr_get_cap() function returns the RO flag DDI_INTR_FLAG_MASKABLE if the device or host  bridge  sup-
       ports interrupt mask bits for the given interrupt type. In flight interrupts can still be taken and delivered to the driver.

       The  ddi_intr_clr_mask()  function unmasks the given interrupt pointed by the device's interrupt handle h if the device or host bridge sup-
       ports the masking operation. The ddi_intr_get_cap() function returns the RO flag DDI_INTR_FLAG_MASKABLE if the device or host  bridge  sup-
       ports interrupt mask bits for the given interrupt type.

       The  mask cannot be cleared directly if the OS implementation has also temporarily masked the interrupt. A call to ddi_intr_clr_mask() must
       be preceded by a call to ddi_intr_set_mask(). It is not necessary to call ddi_intr_clr_mask() when adding and enabling the  interrupt.  The
       system framework will clear any device or host bridge mask bits when the interrupt is initially enabled.

       The ddi_intr_set_mask() and ddi_intr_clr_mask() functions return:

       DDI_SUCCESS	       On success.

       DDI_EINVAL	       On encountering invalid input parameters.

       DDI_FAILURE	       On any implementation specific failure.

       DDI_ENOTSUP	       On device not supporting operation.

CONTEXT

       The ddi_intr_set_mask() and ddi_intr_clr_mask() functions can be called from any context.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       attributes(5), ddi_intr_block_disable(9F), ddi_intr_block_enable(9F), ddi_intr_disable(9F), ddi_intr_enable(9F), ddi_intr_get_pending(9F)

       Consumers  of these interfaces should verify that the return value is not equal to DDI_SUCCESS. Incomplete checking for failure codes could
       result in inconsistent behavior among platforms.

								   22 Apri 2005 					     ddi_intr_set_mask(9F)