DEVICE INITIATED MODE SWITCHING

• US 20080059786A1
• Filed: 10/29/2007
• Published: 03/06/2008
• Est. Priority Date: 11/16/2004
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Blinick, Stephen, Richards, Paul
• Granted Patent: US 7,634,649 B2
• Time in Patent Office: Days
• US Class Current: 713/100
• CPC Class Codes: G06F 11/2289 by configuration test

Abstract

Provided are a method, system, deployment and article of manufacture, wherein in one embodiment, a mode of operation may be switched to a service mode by detecting a device inserted into a connector of an input/output port of a system. In the illustrated embodiment, the device has a connector and a wire which loops a code received from the input/output port back to the input/output port. Upon detecting receipt of the transmitted code, the mode of operation may be switched to a service mode. Other embodiments are described and claimed.

Claims

1. A system, comprising

an operating system;

a host processor having a memory adapted to maintain said operating system;

an embedded controller having a first operational mode of operation and a service mode of operation, and an input/output port having a socket; and

a device having a male connector adapted to be inserted into said socket;

wherein said controller is adapted to;

detect the presence of said device male connector inserted into said socket of said input/output port of said embedded controller; and

switch the mode of operation of said embedded controller from said first operational mode to said service mode in response to said device detection wherein said input/output port is a serial port and wherein said male connector and said socket are each RJ11 standard connectors.

2. The system of claim 1 wherein said socket has a transmit terminal and a receive terminal and wherein said device is adapted to rout signals received by the device from said transmit terminal of said socket back to said receive terminal of said socket.

3. The system of claim 2 wherein said device has a wire shorting said receive terminal to said transmit terminal when said device male connector is inserted into said socket, said wire being adapted to route signals from said transmit terminal to said receive terminal.

4. A system, comprising

an operating system;

a host processor having a memory adapted to maintain said operating system;

an embedded controller having a first operational mode of operation and a service mode of operation, and an input/output port having a socket; and

a device having a male connector adapted to be inserted into said socket;

wherein said controller is adapted to;

detect the presence of said device male connector inserted into said socket of said input/output port of said embedded controller; and

switch the mode of operation of said embedded controller from said first operational mode to said service mode in response to said device detection wherein said embedded controller detecting includes transmitting a code to said input/output port, said device receiving said code and returning said code back to said input/output port, and said embedded controller detecting receipt of said transmitted code.

5. The system of claim 4 wherein said first operational mode includes a first booting process and said service mode includes a second booting process and wherein said switching includes switching said first booting process to said second booting process in response to said device detection.

6. The system of claim 4 wherein said embedded controller includes a mainboard and wherein said socket is positioned on said mainboard of said embedded controller.

7. The system of claim 4 wherein said socket has a transmit terminal and a receive terminal and wherein said device is a dongle comprising said male connector and a wire adapted to short said receive terminal of said socket to said transmit terminal of said socket when said male connector is inserted into said socket.

8. An article of manufacture comprising:

at least one of a hardware device and a computer readable storage medium having code enabled to be executed by a system to perform operations, wherein the system has a host processor having a memory adapted to maintain an operating system, an embedded controller having a first operational mode of operation and a service mode of operation, and an input/output port having a socket, and a device having a male connector adapted to be inserted into said socket, and wherein the operations comprise;

detecting the presence of said device male connector inserted into said socket of said input/output port of said embedded controller; and

switching the mode of operation of said embedded controller from said first operational mode to said service mode in response to said device detection wherein said input/output port is a serial port and wherein said male connector and said socket are each RJ11 standard connectors.

9. The article of claim 8 wherein said socket has a transmit terminal and a receive terminal and wherein said device is adapted to rout signals received by the device from said transmit terminal of said socket back to said receive terminal of said socket.

10. The article of claim 9 wherein said device has a wire shorting said receive terminal to said transmit terminal when said device male connector is inserted into said socket, said wire being adapted to route signals from said transmit terminal to said receive terminal.

11. An article of manufacture comprising:

at least one of a hardware device and a computer readable storage medium having code enabled to be executed by a system to perform operations, wherein the system has a host processor having a memory adapted to maintain an operating system, an embedded controller having a first operational mode of operation and a service mode of operation, and an input/output port having a socket, and a device having a male connector adapted to be inserted into said socket, and wherein the operations comprise;

detecting the presence of said device male connector inserted into said socket of said input/output port of said embedded controller; and

switching the mode of operation of said embedded controller from said first operational mode to said service mode in response to said device detection wherein said embedded controller detecting includes transmitting a code to said input/output port, said device receiving said code and returning said code back to said input/output port, and said embedded controller detecting receipt of said transmitted code.

12. The article of claim 11 wherein said first operational mode includes a first booting process and said service mode includes a second booting process and wherein said switching includes switching said first booting process to said second booting process in response to said device detection.

13. The article of claim 11 wherein said embedded controller includes a mainboard and wherein said socket is positioned on said mainboard of said embedded controller.

14. The article of claim 11 wherein said socket has a transmit terminal and a receive terminal and wherein said device is a dongle comprising said male connector and a wire adapted to short said receive terminal of said socket to said transmit terminal of said socket when said male connector is inserted into said socket.

15. A device for use with the socket of an input/output port of an embedded controller having a first operational mode of operation and a service mode of operation, wherein said socket has a transmit terminal and a receive terminal, the device comprising:

a male connector adapted to be inserted into said socket; and

a circuit adapted to rout signals received by the device from said transmit terminal of said socket back to said receive terminal of said socket wherein said input/output port is a serial port and wherein said male connector and said socket are each RJ11 standard connectors.

16. The device of claim 15 wherein said circuit includes a wire shorting said receive terminal to said transmit terminal when said device male connector is inserted into said socket, said wire being adapted to route signals from said transmit terminal to said receive terminal.