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I cannot visit the site either so I ask it here. How does a wifi card work? Mounting of the file system is a host concept. How can a SD card let the host know i
by sebazzz 6y ago
I cannot visit the site either so I ask it here. How does a wifi card work? Mounting of the file system is a host concept. How can a SD card let the host know its contents have been updated?
- deleted 6y ago[deleted]
- retrac 6y agoSD 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.
- sebazzz 6y agoSo the host device does need support for a wifi SD card? I thought it was an perfect abstraction.