This function sets power-save mode status and capabilities.
STATUS PDCardSetAdapter( UINT32 uSocket, PPDCARD_ADAPTER_STATE pState );
Returns one of the CERR_* return codes in the Cardserv.h header file.
If the ADP_STATE_POWEROFF bit is set, the PC Card system is turned off. If the ADP_STATE_POWERDOWN bit is set, the PC Card system is placed in power-save mode. In power-save mode, it is expected that card insertion and removal events are detected. If both of these bits are off, the PC Card system is placed in full-power mode. The PDCardSetAdapter function is called in critical power situations, so it should not block or yield.