The present disclosure includes systems and techniques relating to customization of a bus adapter card. In some implementations, an apparatus includes a processor and a program memory, a bus adapter card coupled with the computing apparatus and configured to connect with a storage device, the bus adapter card comprising a cache memory and a controller to cache in the cache memory data associated with the storage device, where the program memory includes a driver to communicate with the bus adapter card responsive to requests corresponding to the storage device, and the driver is configured to modify its communications with the bus adapter card responsive to information provided separate from the requests.
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