Host-independent format operation of USB-based storage devices
Systems and methods are disclosed for providing host-independent format operations in data storage devices. In certain embodiments, a data storage device includes a non-volatile memory; a pinhole button configured to be pressed; and a controller configured to: detect that the pinhole button is pressed; detect that the data storage device is coupled to a direct-current (DC) power supply; and initiate formatting of the data storage device or a factory reset of the data storage device.
1. A data storage device comprising:
a non-volatile memory;
a pinhole button configured to be pressed; and
a controller configured to:
detect that the pinhole button is pressed by receiving an interrupt;
detect that the data storage device is coupled to a direct-current (DC) power supply;
initiate formatting of the data storage device or a factory reset of the data storage device; and
mask all interrupts to initiate the formatting or the factory reset.
2. The data storage device of claim 1 , wherein the data storage device includes a Universal Serial Bus (USB) interface.
3. The data storage device of claim 1 , wherein the factory reset of the data storage device includes deleting partitions on the data storage device and resetting user preferences.
4. The data storage device of claim 1 , wherein the factory reset of the data storage device includes formatting of the data storage device.
5. The data storage device of claim 1 , wherein the factory reset of the data storage device does not include formatting of the data storage device.
6. The data storage device of claim 1 , wherein the DC power supply includes one or more of: a wall charger, a power bank, or a rechargeable battery.
7. The data storage device of claim 1 , wherein the data storage device does not receive a command from a host to initiate the formatting or the factory reset.
8. The data storage device of claim 1 , wherein the data storage device is not connected to a host during the formatting or the factory reset.
9. The data storage device of claim 1 , further comprising a light-emitting diode (LED) indicator for providing status information relating to the formatting or the factory reset.
10. The data storage device of claim 9 , wherein the controller is further configured to:
turn on the LED indicator in response to initiating the formatting or the factory reset; and
turn off the LED indicator in response to completing the formatting or the factory reset.
11. The data storage device of claim 1 , further comprising a pin for pressing the pinhole button.
12. The data storage device of claim 1 , wherein the formatting of the data storage device performs formatting of a selected partition on the data storage device.
13. The data storage device of claim 1 , wherein the formatting of the data storage device performs a full format of the data storage device.
14. A method of performing formatting or a factory reset in a data storage device, the method comprising:
providing a data storage device including a non-volatile memory and a pinhole button configured to be pressed;
detecting that the pinhole button is pressed by receiving an interrupt;
detecting that the data storage device is coupled to a direct-current (DC) power supply;
initiating formatting of the data storage device or a factory reset of the data storage device; and
masking all interrupts to initiate the formatting or the factory reset.
15. The method of claim 14 , wherein the data storage device includes a Universal Serial Bus (USB) interface.
16. The method of claim 14 , wherein the factory reset of the data storage device includes deleting partitions on the data storage device and resetting user preferences.
17. The method of claim 14 , wherein the DC power supply includes one or more of: a wall charger, a power bank, or a rechargeable battery.
18. The method of claim 14 , wherein the data storage device further includes a light-emitting diode (LED) indicator for providing status information relating to the formatting or the factory reset.
19. A data storage device comprising:
a non-volatile memory;
a pinhole button configured to be pressed; and
a controller means configured to:
detect that the pinhole button is pressed by receiving an interrupt;
detect that the data storage device is coupled to a direct-current (DC) power supply;
initiate formatting of the data storage device or a factory reset of the data storage device; and
mask all interrupts to initiate the formatting or the factory reset.