Faking SD-Card insertion/removel

[sougata santra]

I am new to linux device-drivers. I am trying to fake add, remove sd cards
while they are mounted. For systems where sd card controller is connected
to PCI bus. I can use fakephp to remove the controller itself. Can similar
thing be done with "mmc" bus_type. So that I can fake card addition and
removal. The current version of fakephp does not use anything from
pci-hotplug subsystem. Is something similar possible ?.

Thank you in advance.

Best regards,
     Sougata.
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