DDI_INTR_GET_SUPPORTED_TYPES(9F)DDI_INTR_GET_SUPPORTED_TYPES(9F)NAME
ddi_intr_get_supported_types - return information on supported hardware
interrupt types
SYNOPSIS
#include <sys/types.h>
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_intr_get_supported_types(dev_info_t *dip, int *typesp);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI)
PARAMETERS
dip
Pointer to dev_info structure
typesp
Pointer to supported interrupt types
DESCRIPTION
The ddi_intr_get_supported_types() function retrieves the interrupt
types supported by a particular hardware device and by the system soft‐
ware. Upon successful return, the supported types are returned as a bit
mask in the integer pointed to by the typesp argument. See
<sys/ddi_intr.h> for a list of interrupts that can be returned by a
hardware device.
For PCI devices that support MSI and/or MSI-X based hardware, this
interface returns only the interrupt types that are supported by all
the hardware in the path to the hardware device.
An interrupt type is usable by the hardware device if it is returned by
the ddi_intr_get_supported_types() function. The device driver can be
programmed to use one of the returned interrupt types to receive hard‐
ware interrupts.
RETURN VALUES
The ddi_intr_get_supported_types() function returns:
DDI_SUCCESS
On success.
DDI_EINVAL
On encountering invalid input parameters.
DDI_INTR_NOTFOUND
Returned when the hardware device is found not to
support any hardware interrupts.
CONTEXT
The ddi_intr_get_supported_types() function can be called from user or
kernel non-interrupt context.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Committed │
└────────────────────┴─────────────────┘
SEE ALSOpci(4), attributes(5), pcmcia(7D), sysbus(4), ddi_intr_add_handler(9F),
ddi_intr_alloc(9F), ddi_intr_enable(9F)
Writing Device Drivers
NOTES
The ddi_intr_get_supported_types() function can be called by the device
driver even at any time if the driver has added an interrupt handler
for a given interrupt type.
Soft interrupts are always usable and are not returned by this inter‐
face.
Any consumer of this interface should verify that the return value is
not equal to DDI_SUCCESS. Incomplete checking for failure codes could
result in inconsistent behavior among platforms.
Apr 07, 2005 DDI_INTR_GET_SUPPORTED_TYPES(9F)