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Firstly, how does the PCMCIA subsystem detect the card insertion or removal. That is, where exactly this IRQ registration is done.? cs.c or ds.c or where else.? As I understand, the client driver's attach() function is called only when a card insertion is detected. Do I have to monitor my IRQ for card insertion and then send an ioctl of DS_INSERT_CARD to the ds_ioctl() in ds.c?
I am trying to write a driver for my PCMCIA PC Card on the MIPS platform using kernel 2.6.12. I don't have any bridge between the PCMCIA slot and the main processor.