Patent ID: 8838843
Filing Date: 2014-09-16
Classification: G06F

Abstract:
1. An electronic apparatus to which a plurality of USB removable drive devices for reading and writing an external storage medium are connectable, the electronic apparatus allocating a drive number to the USB removable drive device connected thereto and managing the USB removable drive device, the electronic apparatus comprising: a USB interface to which the USB removable drive device is connected; a nonvolatile memory configured to store USB removable drive device peculiar information peculiar to the USB removable drive device and drive allocation information indicating correspondence between the USB removable drive device and the drive number and incorporated in the electronic apparatus; and a control unit configured to allocate, when information coinciding with the USB removable drive device peculiar information acquired from the USB removable drive device connected to the USB interface is included in the drive allocation information stored in the nonvolatile memory, the drive number associated according to the drive allocation information with the USB removable drive device connected to the USB interface, wherein the nonvolatile memory further stores drive allocation fixing setting information indicating whether each of the drive numbers is fixedly allocated to a specific one of the USB removable drive devices, and the control unit allocates the drive numbers, for which setting for not allocating the drive number to the specific USB removable drive device is performed according to the drive allocation fixing setting information, to the USB removable drive devices other than the specific USB removable drive device in order of connection to the USB interface.