Sun Microsystems, Inc.
spacerspacer
spacer   www.sun.com docs.sun.com | | |  
spacer
black dot
   
A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z
    
 
Device Information Library Functionsdi_prom_prop_data(3DEVINFO)


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


SunOS 5.9Go To TopLast Changed 1 Dec 1998

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.