RDF_IOCTL_VENDOR (Windows Embedded CE 6.0)
1/6/2010
The RDF_IOCTL_VENDOR callback function performs vendor-specific IOCTL operations. This callback function is optional.
Syntax
NTSTATUS (*ReaderFunction[RDF_IOCTL_VENDOR])(
PSMARTCARD_EXTENSION SmartcardExtension
);
Parameters
SmartcardExtension
[in] Points to the smart card extension of the device. In this SMARTCARD_EXTENSION structure, the MajorIoControlCode member 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. Vendor-specific codes must be between 2048 and 4095. The RequestBuffer member of this structure's IoRequest member points to the user's input buffer. The RequestBufferLength member of this structure's IoRequest member contains the size of the user's input buffer. The ReplyBuffer member of this structures's IoReques member points to the user's output buffer. The ReplyBufferLength member of this structure's IoRequest member contains the size of the user's output buffer.On output, The Information member of this structure's IoRequest member must be set to the number of bytes returned.
Return Value
This function returns an NTSTATUS value. The value returned depends upon the function performed, because RDF_IOCTL_VENDOR is a vendor-defined IOCTL call. Possible values are the following.
| Value | Description |
|---|---|
STATUS_SUCCESS |
Function successfully executed. |
STATUS_NO_MEDIA |
No card is in the reader. |
STATUS_IO_TIMEOUT |
The request has timed out. |
STATUS_BUFFER_TOO_SMALL |
The user's reply buffer is too small. |
STATUS_INVALID_DEVICE_REQUEST |
The request is not valid for this IOCTL. |
STATUS_PENDING |
The operation is pending. |
Requirements
| Header | smclib.h |
| Windows Embedded CE | Windows CE 3.0 and later |