System for processing programmable buttons using system interrupts

• US 7,139,850 B2
• Filed: 06/21/2002
• Issued: 11/21/2006
• Est. Priority Date: 06/21/2002
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Sundaram, Rajesh, Prabhune, Uday A., Mustafa, Tariq, Amemiya, Takeshi
• Primary Examiner(s): Rinehart, Mark H.
• Assistant Examiner(s): SPITTLE, MATTHEW D
• Application Number:
  US10/176,967
• Publication Number:
  US 20030236935A1
• Time in Patent Office: 1,614 Days
• Field of Search: 710/268, 710/266, 710/260, 710/48, 710/67, 710 72- 73, 713/100, 345/773, 345/172, 341/22, 708/142, 708/130
• US Class Current: 710/48
• CPC Class Codes: G06F 9/451 Execution arrangements for user interfaces

Abstract

System for processing programmable buttons using system control interrupts in a portable device. The system comprises a programmable button that comprises logic to generate a selected system control interrupt when actuated. The system also comprises interrupt logic coupled to receive the selected system control interrupt. The interrupt logic comprises logic to generate a button report that includes a button identifier, which indicates that the programmable button has been actuated. The system also comprises button support logic that is coupled to receive the button report, the button support logic comprises logic to determine a selectable device function associated with the button identifier, and logic to activate the selectable device function.

Claims

1. A computing device comprising:

a plurality of programmable buttons that are independent of a computer keyboard, each of said buttons being configured to generate a system control interrupt (SCJ) when actuated;

an operating system comprising an Advanced Configuration and Power Interface (ACPI) driver capable of processing SCIs received from said programmable buttons and generating a corresponding notification;

a button driver for processing the notification from said ACPI driver and for generating a report; and

a button support package which implements a desired action in response to said report based on how the button has been programmed,

wherein at least one of said buttons is adapted to generate a system management interrupt (SMI) while the operating system is being loaded, such that a desired action can be implemented prior to the time the ACPI driver is loaded.

2. The computing device of claim 1, wherein one of said programmable buttons can be used to rotate the orientation of a display associated with the computing device.

3. The computer of device of claim 1 wherein said device is a tablet computer.

4. The computing device of claim 1 wherein said button diver comprises a human input device (HID) button mini-diver and an HID class diver.

5. The computing device of claim 4 wherein said operating system has a kernel mode and a user mode, and wherein said button driver operates in the kernel mode.

6. The computing device of claim 5 wherein said button support package operates in the user mode.

7. The computing device of claim 1 wherein said computing device is capable of running multiple applications programs and at least one of said buttons is programmed such that the action which is implemented in response to the actuation of said button is a function of the application program that is currently active.

8. The computing device of claim 1 wherein said at least one of said buttons is user programmable.

9. The computing device of claim 1 wherein an action associated with at least one of said buttons is not implemented unless the button is actuated for a predetermined period of time.

10. The computing device of claim 1, further comprising a display having a display frame at the periphery thereof, and wherein said plurality of programmable buttons are positioned on said display frame.