Self-configuring peripheral interface system, peripheral device therefor and interface method

• US 20060069813A1
• Filed: 09/30/2004
• Published: 03/30/2006
• Est. Priority Date: 09/30/2004
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Biamonte, Jeffrey R., Trifilo, Timothy M.
• Application Number:
  US10/954,780
• Publication Number:
  US 20060069813A1
• Time in Patent Office: Days
• US Class Current: 710/8
• CPC Class Codes: G06F 9/4415 Self describing peripheral devices

Abstract

A self-configuring peripheral interface system and method are provided wherein at least one peripheral device may be coupled to a master device across a physical interface. The at least one peripheral device includes relocatable device driver code embodied as read only memory code and an associated peripheral functional component. The relocatable device driver code allows the master device to communicate with the associated peripheral functional component when copied from the peripheral device to an available device driver memory space accessible by the master device. The master device activates logic to automatically initiate copying of the relocatable device driver code from the at least one peripheral device when the at least one peripheral device is coupled to the master device via the physical interface.

Claims

1. A peripheral interface system comprising:

a master device coupled to a physical interface for connecting at least one peripheral device thereto; and

logic activated by the master device to automatically initiate copying by the master device of relocatable device driver code from the at least one peripheral device when the at least one peripheral device is coupled to the master device via the physical interface, the copied device driver code facilitating communication by the master device with the at least one peripheral device.

2. The peripheral interface system of claim 1, wherein the logic comprises a common, generic code for facilitating copying of relocatable device driver code into memory accessible by the master device from a plurality of peripheral devices, when each of the plurality of peripheral devices is coupled to the master device via the physical interface, and wherein each copied device driver code facilitates communication by the master device with a corresponding functional component of the peripheral device from which the device driver code is copied.

3. The peripheral interface system of claim 1, wherein the master device lacks device driver capability for the at least one peripheral device prior to the copying of the relocatable device driver code by the master device from the peripheral device.

4. The peripheral interface system of claim 1, where the logic comprises logic to automatically check an address of the at least one peripheral device when the at least one peripheral device is coupled to the master device via the physical interface, and automatically initiate copying of relocatable device driver code when relocatable device driver code is found at the address of the at least one peripheral device.

5. The peripheral interface system of claim 4, wherein the logic to automatically initiate copying of relocatable device driver code comprises logic to automatically initiate copying of device driver code from non-volatile memory of the at least one peripheral device, when the at least one peripheral device is coupled to the master device via the physical interface, into an available device driver memory space accessible by the master device.

6. The peripheral interface system of claim 5, wherein the logic further comprises logic to perform the automatically initiating copying of relocatable device driver code from each peripheral device of a plurality of peripheral devices when the plurality of peripheral devices are coupled to the master device via the physical interface.

7. The peripheral interface system of claim 1, wherein the physical interface facilitates coupling of a plurality of peripheral devices to the master device, and wherein at least one peripheral device of the plurality of peripheral devices includes a pass through connector connectable to a pass through connector of another peripheral device of the plurality of peripheral devices for facilitating coupling of the at least one peripheral device to the master device via the pass through connector of the another peripheral device, and wherein the physical interface comprises a single shared interface.

8. The peripheral interface system of claim 7, wherein the single shared interface comprises a serial interface.

9. The peripheral interface system of claim 1, wherein the physical interface includes a clock bus and a data bus.

10. The peripheral interface system of claim 9, wherein the clock bus and data bus comprise a serial clock bus and a serial data bus, and wherein the at least one peripheral device is serially coupled to the master device via the physical interface.

11. A peripheral device connectable to a master device via a physical interface, the peripheral device comprising:

a peripheral functional component; and

relocatable device driver code stored in non-volatile memory of the peripheral device, the relocatable device driver code to be copied by a master device when the peripheral device is coupled thereto across a physical interface, and facilitating communication by the master device with the peripheral functional component.

12. The peripheral device of claim 11, wherein the peripheral device further comprises a pass through connector connectable to the physical interface for coupling of the peripheral device to the master device.

13. The peripheral device of claim 12, wherein the pass through connector is further connectable to another pass through connector of another peripheral device which is also connectable to the master device via the physical interface, wherein the peripheral device couples to the physical interface across the pass through connector of the another peripheral device.

14. The peripheral device of claim 11, wherein the non-volatile memory and the peripheral functional component are sequentially addressable within the peripheral device.

15. The peripheral device of claim 11, wherein the relocatable device driver code compromises read only memory code, and wherein the non-volatile memory compromises an EEPROM.

16. A peripheral interface system comprising:

a master device coupled to a physical interface;

at least one peripheral device coupled to the master device across the physical interface, the at least one peripheral device comprising

at least one peripheral functional component, and

at least one relocatable device driver code stored in at least one non-volatile memory of the at least one peripheral device; and

logic activated by the master device to automatically initiate copying by the master device of the at least one relocatable device driver code from the at least one peripheral device, wherein the at least one relocatable device driver code facilitates communication by the master device with the at least one peripheral functional component.

17. The peripheral interface system of claim 16, wherein the logic comprises a common, generic code for facilitating copying of relocatable device driver code into memory accessible by the master device from a plurality of peripheral devices, when each of the plurality of peripheral devices is coupled to the master device via the physical interface, and wherein each copied device driver code facilitates communication by the master device with a corresponding peripheral functional component of the peripheral device from which the relocatable device driver code is copied.

18. The peripheral interface system of claim 16, wherein the master device lacks device driver code capability for the at least one peripheral device prior to the copying of the relocatable device driver code by the master device from the peripheral device.

19. The peripheral interface system of claim 16, wherein the logic comprises logic to automatically check an address of the at least one peripheral device, and logic to initiate copying of relocatable device driver code when relocatable device driver code is found at the address of the at least one peripheral device.

20. The peripheral interface system of claim 16, wherein the physical interface facilitates coupling of a plurality of peripheral devices to the master device, and wherein at least one peripheral device of the plurality of peripheral devices includes a pass through connector connectable to a pass through connector of another peripheral device of the plurality of peripheral devices for facilitating coupling of the at least one peripheral device to the master device via the pass through connector of the another peripheral device, and wherein the physical interface comprises a single shared interface.

21. The peripheral interface system of claim 20, wherein the single shared interface comprises a serial interface.

22. A method for interfacing a peripheral device and a master device, the method comprising:

providing the master device with a physical interface for connecting at least one peripheral device thereto, and logic for automatically initiating copying of relocatable device driver code from the at least one peripheral device when coupled thereto via the physical interface; and

providing relocatable device driver code stored within non-volatile memory of the at least one peripheral device, the relocatable device driver code facilitating communication by the master device with an associated peripheral function component of the at least one peripheral device when copied therefrom.

23. The method of claim 22, wherein the logic comprises a common, generic code for facilitating copying of relocatable device driver code into memory accessible by the master device from a plurality of peripheral devices, when each of the plurality of peripheral devices is coupled to the master device via the physical interface, and wherein each copied device driver code facilitates communication by the master device with a corresponding peripheral functional component of the peripheral device from which the relocatable device driver code is copied.

24. The method of claim 22, wherein the master device lacks device driver capability for the at least one peripheral device prior to copying of the relocatable device driver code by the master device from the at least one peripheral device.

25. The method of claim 22, wherein the physical interface facilitates coupling of a plurality of peripheral devices to the master device, and wherein at least one peripheral device of the plurality of peripheral devices includes a pass through connector connectable to a pass through connector of another peripheral device of the plurality of peripheral devices for facilitating coupling of the at least one peripheral device to the master device via the pass through connector of the another peripheral device, and wherein the physical interface comprises a single shared interface.