Method and apparatus for providing cross-platform hardware support for computer platforms

• US 20070067769A1
• Filed: 08/30/2005
• Published: 03/22/2007
• Est. Priority Date: 08/30/2005
• Status: Abandoned Application

• Current Assignee: DLOO Incorporated
• Original Assignee: DLOO Incorporated
• Inventors: Geisinger, Nile
• Application Number:
  US11/216,326
• Publication Number:
  US 20070067769A1
• Time in Patent Office: Days
• US Class Current: 718/1
• CPC Class Codes: G06F 9/4411 Configuring for operating with peripheral devices; Loading of device drivers
• CPC Class Codes: G06F 9/45537 Provision of facilities of other operating environments, e.g. WINE I/O emulation G06F13/105

Abstract

A method and apparatus for providing cross-platform hardware support for a computing platform are described herein. In one embodiment, an example of a computing system includes, but is not limited to, at least one physical hardware device, a host operating system (HOS), a virtual platform running on the HOS including a virtual operating system (VOS) and at least one virtual hardware device associated with a device type of the physical hardware device, a virtual device driver included in the VOS to control the at least one virtual hardware device, and a mechanism to synchronize the at least one virtual hardware device with the at least one physical hardware device through a direct use of at least one device driver library on the HOS. Other methods and apparatuses are also described.

Claims

1. A computer system, comprising:

at least one physical hardware device;

a host operating system (HOS);

a virtual platform running on the HOS including a virtual operating system (VOS) and at least one virtual hardware device associated with a device type of the physical hardware device;

a virtual device driver included in the VOS to control the at least one virtual hardware device; and

a mechanism to synchronize the at least one virtual hardware device with the at least one physical hardware device through a direct use of at least one device driver library on the HOS.

2. The system of claim 1, wherein changes are synchronized by translating a state of the at least one virtual hardware device into equivalent host calls to the at least one device driver library on the HOS and wherein changes communicated from the at least one physical hardware device to the at least one device driver library on the HOS are translated into an equivalent virtual hardware device state.

3. The system of claim 1, wherein the changes are synchronized by translating the signals communicated from the VOS to the at least one virtual hardware device into equivalent host calls to the at least one device driver library on the HOS and wherein changes communicated from the at least one physical hardware device to the at least one device driver library on the HOS are translated into equivalent signals communicated from the at least one virtual hardware device to the VOS.

4. The system of claim 1, further comprising a graphical installer to install the at least one virtual hardware device, the at least one virtual device driver that controls the virtual hardware device, and/or the mechanism that synchronizes the virtual hardware device with the physical hardware device.

5. The system of claim 1, wherein the at least one device driver library comprises a cross-platform library.

6. The system of claim 1, further comprising at least one device library included on the HOS for controlling the state of the virtual hardware device.

7. A method for using a device driver on a foreign operating system connected to a physical hardware device, the method comprising:

emulating an operating system having a device driver;

emulating a virtual hardware device controllable by the device driver and of the same type as the physical hardware device; and

synchronizing changes in the emulated virtual hardware device with changes in the physical hardware device through a direct use of at least one device driver library on the foreign operating system.

8. The method of claim 7, wherein synchronizing changes comprises:

transmitting a message from the device driver to the virtual hardware device which updates a state of the virtual hardware device based on the message;

propagating a state of the virtual hardware device to the physical hardware device by translating the state of the virtual hardware device to corresponding calls to a device driver library on the foreign operating system; and

propagating changes in the physical hardware device back to the virtual hardware device by translating the changes to an equivalent state in the virtual hardware device.

9. The method of claim 7, wherein synchronizing changes comprises:

transmitting a message from the device driver to the virtual hardware device;

translating the message sent to the virtual hardware device to the corresponding calls to a device driver library on the foreign operating system;

translating signals sent from the physical hardware device to the HOS into equivalent signals sent from the virtual hardware device to the emulated operating system.

10. The method of claim 7, wherein the device driver is configured to control the physical hardware device on the foreign operating system as if the device driver is a native device driver on the foreign operating system.

11. A machine-readable medium for storing instructions, when executed by a processor, causes the processor to perform operations, the operations comprising:

emulating an operating system having a device driver dedicated for the host operating system (HOS);

emulating a virtual hardware device controllable by the device driver and of the same type as a physical hardware device; and

synchronizing changes in the virtual hardware device with changes in the physical hardware device through a direct use of at least one device driver library on the foreign operating system.

12. The machine-readable medium of claim 11, wherein synchronizing changes comprises:

transmitting a message from the device driver to the virtual hardware device to update a first state of the virtual hardware device based on the message;

propagating the first state of the virtual hardware device to the physical hardware device by translating the first state of the virtual hardware device to corresponding calls to a device driver library on the HOS; and

propagating changes from the physical hardware device back to the virtual hardware device by translating the changes to a second state of the virtual hardware device.

13. The machine-readable medium of claim 11, wherein synchronizing changes comprises:

transmitting a message from the device driver to the virtual hardware device;

translating the message sent to the virtual hardware device to the corresponding calls to a device driver library on the HOS;

translating signals sent from the physical hardware device to the HOS into equivalent signals sent from the virtual hardware device to the emulated operating system.

14. The machine-readable medium of claim 11, wherein the virtual device driver is configured to control the physical hardware device on the HOS as if the virtual device driver is a native device driver on the HOS.