SD cards are implemented with a bus interface that's quite general. The only thing they provide to the host is block-addressed memory. The file system is an O

SD cards are implemented with a bus interface that's quite general. The only thing they provide to the host is block-addressed memory. The file system is an OS abstraction on top of that. So, the host computer would simply address the WiFi chip on the bus, and issue commands and transfers, similar in overall design to how it would talk to a PCIe device or USB device.