Method and apparatus for dynamic link driver configuration

• US 6,959,343 B1
• Filed: 11/01/1999
• Issued: 10/25/2005
• Est. Priority Date: 11/01/1999
• Status: Expired due to Term

• Current Assignee: Apple Inc.
• Original Assignee: Apple Computer Incorporated (Apple Inc.)
• Inventors: Brown, Steven W.
• Primary Examiner(s): Park, Ilwoo
• Application Number:
  US09/431,703
• Time in Patent Office: 2,185 Days
• Field of Search: 709/321, 709/322, 709/327, 710/8, 710/10, 710/104, 713/1, 713/100, 719/321, 719/327
• US Class Current: 710/8
• CPC Class Codes: G06F 13/102 where the programme performs an interfacing function, e.g. device driver G06F13/105 takes precedence; scheduling within device drivers G06F9/52; contention policies within device drivers G06F9/4881

Abstract

A method and apparatus embodied in transaction layer software suitable for use with serial bus devices, such as IEEE standard 1394 serial bus devices for supporting multiple link device drivers. The invention acquires or otherwise ascertains the capabilities of link devices and provides link device driver configurations to such link devices based on the link device'"'"'s capabilities and behaviors, among other factors.

Claims

1. A method for providing a transaction layer for a module having at least one node connected to a serial bus that configures a link device for each of said at least one nodes comprising:

detecting a link driver;

receiving capabilities of said link driver;

generating a link driver configuration for said link driver from said capabilities of said driver; and

loading said link driver configuration into said link driver.

2. The method of claim 1 further comprising querying said link driver for said capabilities.

3. The method of claim 2 further comprising receiving said capabilities of said link driver from said link driver.

4. The method of claim 1 further comprising storing said capabilities of said link driver.

5. The method of claim 4 wherein storing said capabilities comprises:

generating a node in a linked list for said link driver; and

storing said capabilities of said link driver in a data field of said node.

6. The method of claim 1 further comprising receiving configuration information for said link driver.

7. The method of claim 6 wherein generating said link driver configuration comprises generating said link driver configuration from said capabilities and said configuration information.

8. The method of claim 6 further comprising storing said configuration data.

9. The method of claim 8 further comprising:

generating a node in a linked list for said link driver; and

storing said configuration information of said link driver in a data field of said node.

10. The method of claim 1 further comprising receiving an input of user defined configuration data for said link driver.

11. The method of claim 10 wherein generating said link driver configuration comprises generating said link driver configuration from said capabilities and said user defined configuration data.

12. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to provide a transaction layer for a module having at least one node connected to a serial bus that configures a link device for each of said at least one nodes that performs a method comprising:

detecting a link driver;

receiving capabilities of said link driver;

generating a link driver configuration for said link driver from said capabilities of said driver; and

loading said link driver configuration into said link driver.

13. The program storage device of claim 12 wherein said method further comprises querying said link driver for said capabilities.

14. The program storage device of claim 13 wherein said method further comprises receiving said capabilities of said link driver from said link driver.

15. The program storage device of claim 12 wherein said method further comprises storing said capabilities of said link driver.

16. The program storage device of claim 15 wherein said step of storing said capabilities comprises:

generating a node in a linked list for said link driver; and

storing said capabilities of said link driver in a data field of said node.

17. The program storage device of claim 12 wherein said method further comprises receiving configuration information for said link driver.

18. The program storage device of claim 17 wherein generating said link driver configuration comprises generating said link driver configuration from said capabilities and said configuration information.

19. The program storage device of claim 18 wherein said method further comprises storing said configuration data.

20. The program storage device of claim 19 wherein said method further comprises:

generating a node in a linked list for said link driver; and

storing said configuration information of said link driver in a data field of said node.

21. The program storage device of claim 12 wherein said method further comprises receiving an input of user defined configuration data for said link driver.

22. The program storage device of claim 21 wherein generating said link driver configuration comprises generating said link driver configuration from said capabilities and said user defined configuration data.