Memory Cards
[Supported Cards]

Collaboration diagram for Memory Cards:

Extending Basic Card Object
CHIPCARD_API int	LC_MemoryCard_ExtendCard (LC_CARD *card)
CHIPCARD_API int	LC_MemoryCard_UnextendCard (LC_CARD *card)
Reading And Writing
Normally read-/write operations are limited to about 256 bytes, so these functions encapsulate the ISO functions to allow for transfers of an arbitrary number of bytes.
CHIPCARD_API LC_CLIENT_RESULT	LC_MemoryCard_ReadBinary (LC_CARD *card, int offset, int size, GWEN_BUFFER *buf)
CHIPCARD_API LC_CLIENT_RESULT	LC_MemoryCard_WriteBinary (LC_CARD *card, int offset, const char *ptr, unsigned int size)
Informational Functions
CHIPCARD_API unsigned int	LC_MemoryCard_GetCapacity (const LC_CARD *card)

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Function Documentation

CHIPCARD_API int LC_MemoryCard_ExtendCard

(

LC_CARD *

card

)

Extends a basic card type thus making functions of this group available. This stores some memory-card-related data with the given card object.

CHIPCARD_API int LC_MemoryCard_UnextendCard

(

LC_CARD *

card

)

Unextend a card object which has previously been extended using LC_MemoryCard_ExtendCard. This functions releases all memory-card-related ressources.

CHIPCARD_API LC_CLIENT_RESULT LC_MemoryCard_ReadBinary	(	LC_CARD *	card,
		int	offset,
		int	size,
		GWEN_BUFFER *	buf
	)

Read data from the card.

Parameters:

	card	card object
	offset	offset of the memory area on the card
	size	number of bytes to read
	buf	GWEN_BUFFER to receive the data read

CHIPCARD_API LC_CLIENT_RESULT LC_MemoryCard_WriteBinary	(	LC_CARD *	card,
		int	offset,
		const char *	ptr,
		unsigned int	size
	)

Write data to the card.

Parameters:

	card	card object
	offset	offset of the memory area on the card
	ptr	pointer to the data to be written
	size	number of bytes to write

CHIPCARD_API unsigned int LC_MemoryCard_GetCapacity

(

const LC_CARD *

card

)

Returns the capacity of the card in bytes. For some cards the capacity can not be determined, in which case this function returns 0.