PCMCIA card services method for laptop peripheral addition

摘要

The method involves firstly loading a card services compatibility driver into the computer system. A real mode Card Services environment is simulated using the Card Services compatibility driver. The Card Services environment appears as if no PCMCIA cards are installed in the PCMCIA adapter. The Card Services compatibility driver collects state information. A protected mode Card Services implementation is loaded into the computer system. The state information is transferred from the Card Services compatibility driver to the protected mode Card Services implementation. Control of Card Service requests is transferred to the protected mode Card Services implementation, such that the protected mode Card Services implementation services Card Services function requests.