December 2011
Intermediate to advanced
485 pages
15h 47m
English
Content preview from OS X and iOS Kernel ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Building a RAM Disk Device
Having examined the methods that must be implemented to support the IOBlockStorageDevice interface, we can now take a look at how a simple RAM disk device can be implemented in Mac OS X. As with the driver for any disk device in the I/O Kit, we will split our driver into two classes: the transport driver class, which implements the functionality and communicates with the hardware device, and a class that implements the IOBlockStorageDevice interface, which acts as an interface between the transport driver and the device services layer of the storage driver stack.
As we have seen, the I/O Kit does not require the transport driver for a storage device to be written in any particular way or to subclass from any particular ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.