IP Library › Granted Patent US 9,940,275
Granted Patent B2
US 9,940,275 · App. 14/658,553 · Granted Apr 10, 2018

System and method to avoid SMBus address conflicts via a baseboard management controller

Inventors: Karthik Venkatasubba (Bangalore, IN); Elie J. Jreij (Pflugerville, TX)
Assignee: DELL PRODUCTS, LP
G06F13/362G06F13/4068
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Quick Facts
Patent No.
US 9,940,275
App. No.
14/658,553
Filed
Mar 16, 2015
Granted
Apr 10, 2018
Kind
B2
Art Unit
2181
USPC
710/301
Abstract

An information handling system includes an Inter-Integrated Circuit (I2C) master device and an I2C slave device coupled to the I2C master device via an I2C bus. The I2C slave device is configured with a pre-set I2C address and includes seeding data that is unique to the I2C slave device. The I2C master device receives the seeding data and addresses the I2C slave device at an I2C slave address instead of at the pre-set I2C address, wherein the I2C slave address is based upon the seeding data.

Claims (44)

1. An information handling system, comprising:

an Inter-Integrated Circuit (I2C) master device; and

an I2C slave device coupled to the I2C master device via an I2C bus, wherein the I2C slave device:

is configured with a pre-set I2C address; and

includes seeding data that is based upon a logical location of the I2C slave device;

wherein the I2C master device:

receives the seeding data;

addresses the I2C slave device at an I2C slave address instead of at the pre-set I2C address, wherein the I2C slave address is based upon the seeding data;

selects the I2C slave address from a pool of I2C addresses; and

provides the I2C slave address to the I2C slave device, wherein in providing the I2C slave address to the I2C slave device, the I2C master device further provides an address command to the I2C slave device, the address command including the seeding data and the I2C slave address.

2. The information handling system of claim 1 , wherein the I2C slave device performs a calculation on the seeding data to derive the I2C slave address.

3. The information handling system of claim 2 , wherein the I2C master device performs the calculation on the seeding data to derive the I2C slave address.

4. The information handling system of claim 1 , wherein the I2C slave address comprises an extended I2C address that includes the seeding data.

5. The information handling system of claim 4 , wherein the extended I2C address further includes the pre-set I2C address.

6. The information handling system of claim 4 , wherein the extended I2C address further includes a predetermined I2C address.

7. The information handling system of claim 1 , wherein the I2C slave device further:

receives the address command; and

replaces the pre-set I2C address with the I2C slave address in response to receiving the address command.

8. A method, comprising:

configuring an Inter-Integrated (I2C) slave device with a pre-set I2C address, wherein the I2C slave device includes seeding data that is based upon a logical location of the I2C slave device within an architecture of an information handling system;

receiving, at an I2C master device, the seeding data;

addressing, by the I2C master device, the I2C slave device at an I2C slave address instead of at the pre-set I2C address, wherein the I2C slave address is based upon the seeding data;

selecting, by the I2C master device, the I2C slave address from a pool of I2C addresses;

providing the I2C slave address to the I2C slave device; and

providing an address command to the I2C slave device, the address command including the seeding data and the I2C slave address.

9. The method of claim 8 , further comprising:

performing a calculation on the seeding data to derive the I2C slave address at the I2C slave device.

10. The method of claim 9 , further comprising:

performing the calculation on the seeding data to derive the I2C slave address at the I2C master device.

11. The method of claim 8 , wherein the I2C slave address comprises an extended I2C address that includes the seeding data.

12. The method of claim 11 , wherein the extended I2C address further includes the pre-set I2C address.

13. The method of claim 11 , wherein the extended I2C address further includes a predetermined I2C address.

14. The method of claim 8 , further comprising:

receiving the address command; and

replacing the pre-set I2C address with the I2C slave address in response to receiving the address command.

15. A non-transitory computer-readable medium including code for performing a method, the method comprising:

configuring an Inter-Integrated (I2C) slave device with a pre-set I2C address, wherein the I2C slave device includes seeding data that is assigned to the I2C slave device based upon a discovery of the I2C slave device;

receiving the seeding data;

addressing the I2C slave device at an I2C slave address instead of at the pre-set I2C address, wherein the I2C slave address is based upon the seeding data;

selecting, by the I2C master device, the I2C slave address from a pool of I2C addresses;

providing the I2C slave address to the I2C slave device; and

providing an address command to the I2C slave device, the address command including the seeding data and the I2C slave address.

16. The computer-readable medium of claim 15 , further comprising:

performing a calculation on the seeding data to derive the I2C slave address at the I2C slave device.

Assignments (15)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (045455/0001) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061753/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (040136/0001) Recorded Apr 26, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061324/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL, L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058216/0001 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 040134/0001 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 040136/0001 →
RELEASE OF REEL 035860 FRAME 0797 (TL) Recorded Sep 14, 2016
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
Reel/Frame 040028/0551 →
RELEASE OF REEL 035860 FRAME 0878 (NOTE) Recorded Sep 14, 2016
From: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
Reel/Frame 040027/0158 →
RELEASE OF REEL 035858 FRAME 0612 (ABL) Recorded Sep 13, 2016
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
Reel/Frame 040017/0067 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (NOTES) Recorded Jun 9, 2015
From: DELL PRODUCTS L.P.; DELL SOFTWARE INC.; COMPELLENT TECHNOLOGIES, INC; SECUREWORKS, INC.; STATSOFT, INC.
To: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 035860/0878 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (TERM LOAN) Recorded Jun 9, 2015
From: DELL PRODUCTS L.P.; DELL SOFTWARE INC.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 035860/0797 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (ABL) Recorded Jun 9, 2015
From: DELL PRODUCTS L.P.; DELL SOFTWARE INC.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 035858/0612 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2015
From: VENKATASUBBA, KARTHIK; JREIJ, ELIE A.
To: DELL PRODUCTS, LP
Reel/Frame 035193/0936 →
Continuity (1)
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