brp_Mif_ChangeValueBackup()

brp_errcode brp_Mif_ChangeValueBackup	(	brp_protocol	protocol,
		unsigned	Mode,
		unsigned	Block,
		unsigned	Value
	)

This command is identical to brp_Mif_ChangeValue(), but can only be used for MIFARE cards which support automatic transfer, such as Pro or Light MIFARE variants.

This command is not supported by LEGIC readers.

Parameters

[in]	protocol	used to execute the command
[in]	Mode	Access mode. Possible values, 0x00: decrement, 0x01: increment, 0x02: restore/load.
[in]	Block	Block to load data from (only value blocks are supported).
[in]	Value	Value to add/subtract. This parameter is ignored when Mode = 0x02.