METHOD FOR IDENTIFYING UNIVERSAL SERIAL BUS HOST, AND ELECTRONIC DEVICE THEREOF

• US 20130297835A1
• Filed: 03/08/2013
• Published: 11/07/2013
• Est. Priority Date: 05/02/2012
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: CHO, Soon-Yong
• Application Number:
  US13/790,848
• Publication Number:
  US 20130297835A1
• Time in Patent Office: Days
• US Class Current: 710/14
• CPC Class Codes: G06F 2221/2105 Dual mode as a secondary aspect
• CPC Class Codes: G06F 3/0634 by changing the state or mode of one or more devices
• CPC Class Codes: H04M 1/6083 by interfacing with the vehicle audio system
• CPC Class Codes: H04M 1/724098 Interfacing with an on-board device of a vehicle for hands-free speaking in vehicles H04M1/6075
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces

Abstract

A method and an apparatus for operating an electronic device for USB host identification are provided. The method includes receiving, from a host device connected to the electronic device through a USB, setup data comprising at least one field, determining whether the at least one field of the setup data is set to a value corresponding to a first-type host, and converting to an operation mode corresponding to the first-type host when the at least one field is set to the value corresponding to the first-type host.

Claims

1. A method for operating an electronic device, the method comprising:

receiving, from a host device connected to the electronic device through a Universal Serial Bus (USB), setup data comprising at least one field;

determining whether the at least one field of the setup data is set to a value corresponding to a first-type host; and

converting to an operation mode corresponding to the first-type host when the at least one field is set to the value corresponding to the first-type host.

2. The method of claim 1, wherein the first-type host corresponds to a head unit of a vehicle.

3. The method of claim 2, wherein the determining of whether the at least one field of the setup data is set to the value corresponding to the first-type host comprises:

determining whether a ‘

bmRequestType’

field of the setup data corresponds to a ‘

vendor specific request’

; and

determining whether a ‘

bRequest’

field of the setup data corresponds to ‘

0xf0’

.

4. The method of claim 2, wherein the operation mode corresponding to the first-type host is a mode of supporting a driver used by the head unit.

5. The method of claim 4, wherein the operation mode corresponding to the first-type host is a mode of using a Network Control Model (NCM) protocol as an Ethernet link driver.

6. The method of claim 2, wherein the converting to the operation mode corresponding to the first-type host comprises re-performing a USB enumeration process with the host in the operation mode corresponding to the first-type host.

7. The method of claim 1, further comprising:

performing a USB enumeration process with the host in a multi-configuration mode of providing a plurality of configurations; and

converting to a single-configuration mode of providing one configuration, when a conversion command to a single-configuration mode is generated.

8. The method of claim 7, wherein the conversion command to the single-configuration mode corresponds to a command for executing a first function providable to the host by a user operation, and the single-configuration mode is a mode of providing only the first function.

9. The method of claim 7, wherein the converting to the single-configuration mode comprises re-performing the USB enumeration process in the single-configuration mode.

10. The method of claim 7, further comprising converting to the multi-configuration mode when a conversion command to the multi-configuration mode is generated.

11. The method of claim 10, wherein the conversion command to the multi-configuration mode corresponds to a command for further executing a second function providable to the host by a user operation, and the multi-configuration mode is a mode of providing the first function and the second function.

12. An electronic device comprising:

a Universal Serial Bus (USB) port configured to provide a physical connection unit for performing communication with a host according to a USB standard;

a memory unit configured to store at least one software module controlling a USB connection with the host; and

a processor unit configured to execute the at least one software module, wherein the at least one software module comprises at least one instruction for receiving, from a host device connected to the electronic device through a USB, setup data comprising at least one field, for determining whether the at least one field of the setup data is set to a value corresponding to a first-type host, and for converting to an operation mode corresponding to the first-type host when the at least one field is set to the value corresponding to the first-type host.

13. The electronic apparatus of claim 12, wherein the first-type host corresponds to a head unit of a vehicle.

14. The electronic apparatus of claim 13, wherein, to determine whether the at least one field of the setup data is set to the value corresponding to the first-type host, the at least one software module comprises at least one of an instruction for determining whether a ‘

bmRequestType’

field of the setup data corresponds to a ‘

vendor specific request’

, and an instruction for determining whether a ‘

bRequest’

field of the setup data corresponds to ‘

0xf0’

.

15. The electronic apparatus of claim 13, wherein the operation mode corresponding to the first-type host is a mode of supporting a driver used by the head unit.

16. The electronic apparatus of claim 15, wherein the operation mode corresponding to the first-type host is a mode of using an NCM (Network Control Model) protocol as an Ethernet link driver.

17. The electronic apparatus of claim 13, wherein, to convert to the operation mode corresponding to the first-type host, the at least one software module comprises an instruction for re-performing a USB enumeration process with the host in the operation mode corresponding to the first-type host.

18. The electronic apparatus of claim 12, wherein the at least one software module comprises at least one instruction for performing a USB enumeration process with the host in a multi-configuration mode of providing a plurality of configurations, and for converting to a single-configuration mode of providing one configuration, when a conversion command to a single-configuration mode is generated.

19. The electronic apparatus of claim 18, wherein the conversion command to the single-configuration mode corresponds to a command for executing a first function providable to the host by a user operation, and the single-configuration mode is a mode of providing only the first function.

20. The electronic apparatus of claim 18, wherein, to convert to the single-configuration mode, the at least one software module comprises an instruction for re-performing the USB enumeration process in the single-configuration mode.

21. The electronic apparatus of claim 18, wherein the at least one software module comprises at least one instruction for converting to the multi-configuration mode when a conversion command to the multi-configuration mode is generated.

22. The electronic apparatus of claim 21, wherein the conversion command to the multi-configuration mode corresponds to a command for further executing a second function providable to the host by a user operation, and the multi-configuration mode is a mode of providing the first function and the second function.