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The device driver Close() function should uninitialize the hardware and release or free any resources acquired in the Open() function.
Arguments
p_dev
Pointer to device to close.
Returned Value
None.
Notes/Warnings
- Tracking whether a device is open is not necessary, because this should ONLY be called when a device is open.
- This will be called EVERY time the device is closed.
- The device driver
Close()function is called while the caller holds the device lock.