di_prop_bytes man page on Solaris

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di_prop_bytes(3DEVINFDevice Information Library Functiodi_prop_bytes(3DEVINFO)

NAME
       di_prop_bytes,	   di_prop_devt,      di_prop_ints,	 di_prop_name,
       di_prop_strings, di_prop_type, di_prop_int64 - access  property	values
       and attributes

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

       int di_prop_bytes(di_prop_t prop, uchar_t **prop_data);

       dev_t di_prop_devt(di_prop_t prop);

       int di_prop_ints(di_prop_t prop, int **prop_data);

       int di_prop_int64(di_prop_t prop, int64_t **prop_data);

       char *di_prop_name(di_prop_t prop);

       int di_prop_strings(di_prop_t prop, char **prop_data);

       int di_prop_type(di_prop_t prop);

PARAMETERS
       prop	       Handle  to  a  property	returned by di_prop_next(3DEV‐
		       INFO).

       prop_data       For di_prop_bytes(), the address of  a  pointer	to  an
		       unsigned character.

		       For  di_prop_ints(),  the  address  of  a pointer to an
		       integer.

		       For di_prop_int64(), the address	 of  a	pointer	 to  a
		       64-bit integer.

		       For  di_prop_strings(),	the  address  of  pointer to a
		       character.

DESCRIPTION
       These functions access information associated with property values  and
       attributes.  All	 memory allocated by these functions is managed by the
       library and must not be freed by the caller.

       The di_prop_bytes() function returns the property data as a  series  of
       unsigned characters.

       The  di_prop_devt() function returns the dev_t with which this property
       is associated. If the value is  DDI_DEV_T_NONE,	the  property  is  not
       associated with any specific minor node.

       The  di_prop_ints()  function  returns the property data as a series of
       integers.

       The di_prop_int64() function returns the property data as a  series  of
       64-bit integers.

       The di_prop_name() function returns the name of the property.

       The  di_prop_strings() function returns the property data as a concate‐
       nation of null-terminated strings.

       The di_prop_type() function returns the type of the property. The  type
       determines  the	appropriate  interface	to access property values. The
       following is a list of possible types:

       DI_PROP_TYPE_BOOLEAN	       There is no  interface  to  call	 since
				       there  is  no  property data associated
				       with boolean properties. The  existence
				       of the property defines a TRUE value.

       DI_PROP_TYPE_INT		       Use  di_prop_ints()  to access property
				       data.

       DI_PROP_TYPE_INT64	       Use di_prop_int64() to access  property
				       data.

       DI_PROP_TYPE_STRING	       Use  di_prop_strings()  to access prop‐
				       erty data.

       DI_PROP_TYPE_BYTE	       Use di_prop_bytes() to access  property
				       data.

       DI_PROP_TYPE_UNKNOWN	       Use  di_prop_bytes() to access property
				       data. Since the	type  of  property  is
				       unknown,	 the caller is responsible for
				       interpreting the contents of the data.

       DI_PROP_TYPE_UNDEF_IT	       The property has been undefined by  the
				       driver. No property data is available.

RETURN VALUES
       Upon    successful    completion,    di_prop_bytes(),   di_prop_ints(),
       di_prop_int64(), and di_prop_strings()  return  a  non-negative	value,
       indicating  the	number	of  entries  in the property value buffer. See
       di_prom_prop_lookup_bytes(3DEVINFO) for a  description  of  the	return
       values.	Otherwise,  -1	is  returned  and errno is set to indicate the
       error.

       The di_prop_devt() function returns the dev_t value associated with the
       property.

       The  di_prop_name()  function  returns a pointer to a string containing
       the name of the property.

       The di_prop_type() function can return one of types  described  in  the
       DESCRIPTION section.

ERRORS
       These functions will fail if:

       EINVAL	       Invalid	argument.  For example, the property type does
		       not match the interface.

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

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Evolving			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │Safe			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       di_prom_prop_lookup_bytes(3DEVINFO),  di_prop_next(3DEVINFO),   libdev‐
       info(3LIB), attributes(5)

       Writing Device Drivers

SunOS 5.10			  27 Mar 2001	       di_prop_bytes(3DEVINFO)
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