Patent ID: 8667216
Filing Date: 2014-03-04
Classification: G06F,G11C

Abstract:
1. A host device, connected with a storage device that including readable and writable nonvolatile memory, the host device comprising; an interface driver for operating the storage device, the interface driver enabling a first interface driver for supporting read and write operations of the nonvolatile memory and a second interface driver for supporting only the read operation of the read and write operations of the nonvolatile memory to be alternately selected, and a control unit for determining whether or not the nonvolatile memory is to be recognized as read only memory in which only the read operation of the read and write operations is possible based on information acquired from the storage device, and switching the interface driver from the first interface driver to the second interface driver when determined to recognize as the read only memory, wherein when the storage device determined to be recognized as read only memory is connected to the host device, the host device selects the second interface driver, whereby the host device recognizes the storage device as a read only memory without issuing a write request to the storage device.