Manual Pages for UNIX Operating System command usage for man di_prom_prop_lookup_bytes

Device Information Library Functions
                              di_prom_prop_lookup_bytes(3DEVINFO)



NAME
     di_prom_prop_lookup_bytes,         di_prom_prop_lookup_ints,
     di_prom_prop_lookup_strings - search for a PROM property

SYNOPSIS
     cc [ flag... ] file... -ldevinfo [ library... ]
     #include 

     int di_prom_prop_lookup_bytes(di_prom_handle_t ph, di_node_t node,
          const char *prop_name, uchar_t **prop_data);


     int di_prom_prop_lookup_ints(di_prom_handle_t ph, di_node_t node,
          const char *prop_name, int **prop_data);


     int di_prom_prop_lookup_strings(di_prom_handle_t ph, di_node_t node,
          const char *prop_name, char **prop_data);


PARAMETERS
     node         Handle to device node in  snapshot  created  by
                  di_init(3DEVINFO).


     ph           Handle returned by di_prom_init(3DEVINFO).


     prop_data    For di_prom_prop_lookup_bytes(), the address of
                  a pointer to an array of unsigned characters.

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

                  For di_prom_prop_lookup_strings(), the  address
                  of pointer to a buffer.


     prop_name    The name of the property being searched.


DESCRIPTION
     These functions return the value of a  known  PROM  property
     name  and  value  type  and  update the prop_data pointer to
     reference memory  that  contains  the  property  value.  All
     memory  allocated  by  these  functions  is  managed  by the
     library and must not be freed by the caller.

RETURN VALUES
     If the property is found, the number of entries in prop_data
     is  returned.  If  the  property  is  a  boolean  type, 0 is



SunOS 5.11           Last change: 1 Dec 1998                    1






Device Information Library Functions
                              di_prom_prop_lookup_bytes(3DEVINFO)



     returned and the existence of this  property  indicates  the
     value is true. Otherwise, -1 is returned and errno is set to
     indicate the error.


     For di_prom_prop_lookup_bytes(), the number  of  entries  is
     the  number  of  unsigned characters contained in the buffer
     pointed to by prop_data.


     For di_prom_prop_lookup_ints(), the number of entries is the
     number  of  integers  contained  in the buffer pointed to by
     prop_data.


     For di_prom_prop_lookup_strings(), the number of entries  is
     the  number  of  null-terminated  strings  contained  in the
     buffer. The strings are stored in a concatenated  format  in
     the buffer.

ERRORS
     These functions will fail if::

     EINVAL    Invalid argument.


     ENXIO     The property does not exist.


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



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | Safe                        |
    |_____________________________|_____________________________|


SEE ALSO
     di_init(3DEVINFO),              di_prom_prop_next(3DEVINFO),
     libdevinfo(3LIB), attributes(5), openprom(7D)


     Writing Device Drivers




SunOS 5.11           Last change: 1 Dec 1998                    2






Device Information Library Functions
                              di_prom_prop_lookup_bytes(3DEVINFO)






















































SunOS 5.11           Last change: 1 Dec 1998                    3