csx_GetFirstTuple

, csx_GetNextTuple

- return Card Information Structure tuple

Synopsis

#include <sys/pccard.h>

int32_t csx_GetFirstTuple(client_handle_t ch, tuple_t *tu);

int32_t csx_GetNextTuple(client_handle_t ch, tuple_t *tu);

Interface Level

Solaris DDI Specific (Solaris DDI)

Parameters

ch

Client handle returned from csx_RegisterClient(9F).

tu

Pointer to a tuple_t structure.

Description

The functions csx_GetFirstTuple() and csx_GetNextTuple() return the first and next tuple, respectively, of the specified type in the Card Information Structure (CIS) for the specified socket.

Structure Members

The structure members of tuple_t are:

uint32_t    Socket;        /* socket number */
uint32_t    Attributes;    /* Attributes */
cisdata_t   DesiredTuple;  /* tuple to search for or flags */
cisdata_t   TupleCode;     /* tuple type code */
cisdata_t   TupleLink;     /* tuple data body size */

The fields are defined as follows:

Socket

Not used in Solaris, but for portability with other Card Services implementations, it should be set to the logical socket number.

Attributes

This field is bit-mapped. The following bits are defined:

TUPLE_RETURN_LINK

Return link tuples if set. The following are link tuples and will only be returned by this function if the TUPLE_RETURN_LINK bit in the Attributes field is set:

    CISTPL_NULL    CISTPL_LONGLINK_MFC
    CISTPL_LONGLINK_A    CISTPL_LINKTARGET
    CISTPL_LONGLINK_C    CISTPL_NO_LINK
    CISTPL_LONGLINK_CB    CISTPL_END

TUPLE_RETURN_IGNORED_TUPLES

Return ignored tuples if set. Ignored tuples will be returned by this function if the TUPLE_RETURN_IGNORED_TUPLES bit in the Attributes field is set, see tuple(9S) for more information. The CIS is parsed from the location setup by the previous csx_GetFirstTuple() or csx_GetNextTuple() request.

DesiredTuple

This field is the tuple value desired. If it is RETURN_FIRST_TUPLE, the very first tuple of the CIS is returned (if it exists). If this field is set to RETURN_NEXT_TUPLE, the very next tuple of the CIS is returned (if it exists). If the DesiredTuple field is any other value on entry, the CIS is searched in an attempt to locate a tuple which matches.

TupleCode,TupleLink

These fields are the values returned from the tuple found. If there are no tuples on the card, CS_NO_MORE_ITEMS is returned.

Since the csx_GetFirstTuple(), csx_GetNextTuple(), and csx_GetTupleData(9F) functions all share the same tuple_t structure, some fields in the tuple_t structure are unused or reserved when calling this function and these fields must not be initialized by the client.

Return Values

CS_SUCCESS

Successful operation.

CS_BAD_HANDLE

Client handle is invalid.

CS_NO_CARD

No PC Card in socket.

CS_NO_CIS

No Card Information Structure (CIS) on PC card.

CS_NO_MORE_ITEMS

Desired tuple not found.

CS_UNSUPPORTED_FUNCTION

No PCMCIA hardware installed.

Context

These functions may be called from user or kernel context.

See Also

csx_GetTupleData(9F), csx_ParseTuple(9F), csx_RegisterClient(9F), csx_ValidateCIS(9F), tuple(9S)

PC Card 95Standard, PCMCIA/JEIDA