SmartcardRawRequest (WDM) routine
The SmartcardRawRequest routine copies data from the user buffer to the send buffer, which the driver uses to transmit data to the smart card reader.
Syntax
NTSTATUS SmartcardRawRequest(
PSMARTCARD_EXTENSION SmartcardExtension
);
Parameters
- SmartcardExtension
A pointer to a SMARTCARD_EXTENSION structure that contains the device extension of the smart card device.
Return value
SmartcardRawRequest returns one of the following NTSTATUS values:
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The buffer was set up successfully. |
| STATUS_BUFFER_OVERFLOW | The internal buffer is too small to hold the data that should be sent to the smart card. To avoid this, allocate a larger send buffer. For more information, see SmartcardInitialize (WDM). |
| STATUS_BUFFER_TOO_SMALL | The user buffer is too small to hold the data. |
Remarks
This routine copies data from the user buffer to SmartcardExtension->SmartcardRequest.Buffer, and it adjusts SmartcardExtension->SmartcardRequest.BufferLength to the number of bytes to be transmitted to the smart card. The driver then writes this buffer to the smart card and reads the bytes coming from the smart card into SmartcardExtension->SmartcardReply.Buffer, as described in SmartcardRawReply (WDM).
Requirements
Target platform |
Desktop |
Version |
Available in Windows XP and later versions of Windows. |
Header |
Smclib.h (include Smclib.h) |
Library |
Smclib.lib |
IRQL |
<= DISPATCH_LEVEL |
See also