1ldi_devmap(9F)           Kernel Functions for Drivers           ldi_devmap(9F)
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NAME

6       ldi_devmap - Issue a devmap request to a device
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SYNOPSIS

9       #include <sys/sunldi.h>
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11       int ldi_devmap(ldi_handle_t lh, devmap_cookie_t dhp, offset_t off,
12            size_t len, size_t *maplen, uint_t model);
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PARAMETERS

16       lh        Layered handle.
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19       dhp       Opaque mapping handle used by the system to describe mapping.
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22       off       User offset within the logical device memory at which mapping
23                 begins.
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26       len       Mapping length (in bytes).
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29       maplen    Pointer to length (in bytes)  of  validated  mapping.   (Less
30                 than or equal to len).
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33       model     Data model type of current thread.
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DESCRIPTION

37       The  ldi_devmap() function passes an devmap request to the device entry
38       point for the device specified by the layered handle. This operation is
39       supported for character devices.
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RETURN VALUES

42       The  ldi_devmap()  function returns 0 upon success. If a failure occurs
43       before the request is passed to the device, possible return values  are
44       shown  below.  Otherwise  any other error number may be returned by the
45       device.
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47       EINVAL     Invalid input parameters.
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50       ENOTSUP    Operation is not supported for this device.
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CONTEXT

54       This function may be called from user or kernel context.
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58SunOS 5.11                        3 June 2003                   ldi_devmap(9F)