RDF_IOCTL_VENDOR (Optional)

The RDF_IOCTL_VENDOR callback function performs vendor-specific IOCTL operations.

NTSTATUS 
(*ReaderFunction[RDF_IOCTL_VENDOR])(
  PSMARTCARD_EXTENSION SmartcardExtension
);
 

Parameters

SmartcardExtension

Points to the smart card extension of the device.

Input Values

SmartcardExtension->MajorIoControlCode

Contains a vendor-specific IOCTL code. Refer to the macro SCARD_CTL_CODE in winsmcrd.h for information on how to define a vendor-specific IOCTL code. Note that the code must be between 2048 and 4095.

SmartcardExtension->IoRequest.RequestBuffer

Points to the user's input buffer.

SmartcardExtension->IoRequest.RequestBufferLength

The size of the user's input buffer.

SmartcardExtension->IoRequest.ReplyBuffer

Points to the user's output buffer.

SmartcardExtension->IoRequest.ReplyBufferLength

The size of the user's output buffer.

Output Values

SmartcardExtension->IoRequest.Information

Must be set to the number of bytes returned.

Return Values

This function returns an NTSTATUS value. The value returned depends upon the function performed, since RDF_IOCTL_VENDOR is a vendor-defined IOCTL call. Possible values are the following.