ldi_devmap(9F) Kernel Functions for Drivers ldi_devmap(9F)NAMEldi_devmap - Issue a devmap request to a device
SYNOPSIS
#include <sys/sunldi.h>
int ldi_devmap(ldi_handle_t lh, devmap_cookie_t dhp, offset_t off,
size_t len, size_t *maplen, uint_t model);
PARAMETERS
lh Layered handle.
dhp Opaque mapping handle used by the system to describe
mapping.
off User offset within the logical device memory at which
mapping begins.
len Mapping length (in bytes).
maplen Pointer to length (in bytes) of validated mapping.
(Less than or equal to len).
model Data model type of current thread.
DESCRIPTION
The ldi_devmap() function passes an devmap request to the device entry
point for the device specified by the layered handle. This operation is
supported for character devices.
RETURN VALUES
The ldi_devmap() function returns 0 upon success. If a failure occurs
before the request is passed to the device, possible return values are
shown below. Otherwise any other error number may be returned by the
device.
EINVAL Invalid input parameters.
ENOTSUP Operation is not supported for this device.
CONTEXT
This function may be called from user or kernel context.
SunOS 5.10 3 June 2003 ldi_devmap(9F)
