PFNUSBCAMD_CancelBulkReadWrite callback function (usbcamdi.h)
The USBCAMD_CancelBulkReadWrite service cancels a pending bulk read or write request.
Syntax
PFNUSBCAMD_CancelBulkReadWrite PfnusbcamdCancelbulkreadwrite;
NTSTATUS PfnusbcamdCancelbulkreadwrite(
[in] PVOID DeviceContext,
[in] ULONG PipeIndex
)
{...}
Parameters
[in] DeviceContext
Pointer to device-specific context.
[in] PipeIndex
Specifies the index of the bulk pipe to cancel the read or write request.
Return value
USBCAMD_CancelBulkReadWrite returns STATUS_SUCCESS if the call was successful. Other possible error codes include:
| Return code | Description |
|---|---|
| STATUS_INVALID_PARAMETER | USBCAMD may return STATUS_INVALID_PARAMETER for a number of reasons, including: The value passed in the PipeIndex argument is invalid, the type of the pipe specified by the PipeIndex argument represents an invalid type of pipe, or the current IRQL >= DISPATCH_LEVEL. |
Remarks
USBCAMD_CancelBulkReadWrite is not available in USBCAMD version 1.0.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | usbcamdi.h (include Usbcamdi.h) |
| IRQL | PASSIVE_LEVEL |