Content-type: text/html Man page of di_prom_prop_data

di_prom_prop_data

Section: Device Information Library Functions (3DEVINFO)
Updated: 1 Dec 1998
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NAME

di_prom_prop_data, di_prom_prop_next, di_prom_prop_name - access PROM device information  

SYNOPSIS

cc [ flag... ] file... -ldevinfo [ library... ]
#include <libdevinfo.h>

di_prom_prop_t di_prom_prop_next(di_prom_handle_t ph, di_node_t node, di_prom_prop_t prom_prop);

char *di_prom_prop_name(di_prom_prop_t prom_prop);

int di_prom_prop_data(di_prom_prop_t prom_prop, uchar_t **prop_data);  

PARAMETERS

node Handle to a device node in the snapshot of kernel device tree.

ph PROM handle

prom_prop Handle to a PROM property.

prop_data Address of a pointer.

 

DESCRIPTION

The di_prom_prop_next() function obtains a handle to the next property on the PROM property list associated with node. If prom_prop is DI_PROM_PROP_NIL, the first property associated with node is returned.

The di_prom_prop_name() function returns the name of the prom_prop property.

The di_prom_prop_data() function returns the value of the prom_prop property. The return value is a non-negative integer specifying the size in number of bytes in prop_data.

All memory allocated by these functions is managed by the library and must not be freed by the caller.  

RETURN VALUES

The di_prom_prop_data() function returns the number of bytes in prop_data and prop_data is updated to point to a byte array containing the property value. If 0 is returned, the property is a boolean property and the existence of this property indicates the value is true.

The di_prom_prop_name() function returns a pointer to a string that contains the name of prom_prop.

The di_prom_prop_next() function returns a handle to the next PROM property. DI_PROM_PROP_NIL is returned if no additional properties exist.  

ERRORS

See openprom(7D) for a description of possible errors.  

ATTRIBUTES

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

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityEvolving
MT-LevelSafe

 

SEE ALSO

attributes(5), openprom(7D)

Writing Device Drivers


 

Index

NAME
SYNOPSIS
PARAMETERS
DESCRIPTION
RETURN VALUES
ERRORS
ATTRIBUTES
SEE ALSO

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