ddi_mapdev_ctl(9S)

NAME

ddi_mapdev_ctl − device mapping-control structure

SYNOPSIS

#include <sys/conf.h>
#include <sys/devops.h>

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).

DESCRIPTION

Future releases of Solaris will provide this structure for binary and source compatibility. However, for increased functionality, use devmap_callback_ctl(9S) instead. See devmap_callback_ctl(9S) for details.

A ddi_mapdev_ctl structure describes a set of routines that allow a device driver to manage events on mappings of the device created by ddi_mapdev(9F).

See mapdev_access(9E), mapdev_dup(9E), and mapdev_free(9E) for more details on these entry points.

STRUCTURE MEMBERS

intmapdev_rev;
int(∗mapdev_access)(ddi_mapdev_handle_t handle, void ∗devprivate,
off_t offset);
void(∗mapdev_free)(ddi_mapdev_handle_t handle, void ∗devprivate);
int(∗mapdev_dup)(ddi_mapdev_handle_t handle, void ∗devprivate,
ddi_mapdev_handle_t new_handle, void ∗∗new_devprivate);

A device driver should allocate the device mapping control structure and initialize the following fields:

mapdev_rev Must be set to MAPDEV_REV.

mapdev_access Must be set to the address of the mapdev_access(9E) entry point.

mapdev_free Must be set to the address of the mapdev_free(9E) entry point.

mapdev_dup Must be set to the address of the mapdev_dup(9E) entry point.

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