GetDriverForDevice9

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GetDriverForDevice

GetDriverForDevice loads the "best" driver for a device from memory. The algorithm for determining the best driver is described in Matching Drivers With Devices.



 
OSErr GetDriverForDevice(

                     RegEntryIDPtr device,

                     CFragConnectionID *fragmentConnID,

                     DriverEntryPointPtr *fragmentMain,

                     DriverDescriptionPtr *driverDesc);

device: Device ID.
fragmentConnID: Pointer to a fragment connection ID.
fragmentMain: Pointer to DoDriverIO.
driverDesc: Pointer to the driver description of driver.

DESCRIPTION

Given a pointer to the RegEntryID value of a device, GetDriverForDevice loads from memory the most suitable driver for that device. It returns the loaded driver's CFM connectionID value in fragmentConnID, a pointer to its DoDriverIO entry point in fragmentMain, and a pointer to its driver description in driverDesc.

RESULT CODES

`noErr`	0	No error
`fnfErr`	-43	File not found
All CFM errors (See Inside Macintosh: PowerPC System Software)