Virtual Host controller porting to leopard.

Hi,

I developed an virtual host controller driver which is a subclass of IOUSBControllerV2 in MacOSX 10.4.x. while I am porting this driver to 10.5. I find following errors.

- initially i tried to build driver using 10.4 SDK, the kextload failed with error message

kld(): Undefined symbols:

__ZN13IOUSBWorkLoop8workLoopEV

kextload: kld_load_from_memory() failed

kextload: a link/load error occured for extension

I modified info.plist with latest versions like

    <key>com.apple.kpi.bsd</key>

    <string>8.0.0</string>

    <key>com.apple.kpi.iokit</key>

    <string>8.0.0</string>

    <key>com.apple.kpi.libkern</key>

    <string>8.0.0</string>

    <key>com.apple.kpi.mach</key>

    <string>8.0.0</string>

still i find the same error.

- Then i changed SDK to 10.5 and tried to build it, error occured at IOUSBWorkloop initially. which has changed with added parameter called controllerLocation in its function.

static IOUSBWorkLoop * workloop(); ( 10.4 )

static IOUSBWorkLoop * workloop(const char * controllerLocation); ( 10.5 )

passed Null to the parameter.

It loaded succesfully. but the driver is not working. It has not loaded AppleUSBHub, IOUSBInterface and also IOUSBUserclient.

- Next I changed the super class to IOSUBControllerV3, while build error occured at

OSDefineMetaClassAndStructors(myDriverClass, IOUSBControllerV3) <---

error: cannot allocate an object of abstract type 'myDriverClass'.

The major difference between IOUSBControllerV3 and IOUSBControllerV4 is regarding power management.

I think this can be easily solved by making some changes in info.plist. Any help please let me know.

I am using MacOSX 10.5.3 build 9D23

Thanks & Regards

Sachin.

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