PCI_MSIX_SET_ENTRY - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// wdm.h
PCI_MSIX_SET_ENTRY PciMsixSetEntry;
NTSTATUS PciMsixSetEntry(
[in] PVOID Context,
[in] ULONG TableEntry,
[in] ULONG MessageNumber
)
{...}
View the official Windows Driver Kit DDI referenceNo description available.
The SetTableEntry routine sets the message ID for a table entry in the MSI-X hardware interrupt table.
Context [in]A pointer to interface-specific context information. The caller passes the value that is passed as the Context member of the PCI_MSIX_TABLE_CONFIG_INTERFACE structure for the interface.
TableEntry [in]The index of the table entry in the MSI-X hardware interrupt table.
MessageNumber [in]The message ID for the interrupt. This value is also the index for the interrupt's entry in the MessageInfo member of the IO_INTERRUPT_MESSAGE_INFO structure that describes the driver's message-signaled interrupts. The IoConnectInterruptEx function supplies a pointer to this structure.
The SetTableEntry routine might return one of the following NTSTATUS values:
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The operation completed successfully. |
| STATUS_INVALID_PARAMETER | The device does not use MSI-X, or the TableEntry or MessageNumber parameters do not correspond to interrupt resources that are assigned to the device. |
By default, the operating system assigns the index of the table entry as the message ID for the interrupt. If there are more table entries than messages, the system sets the remaining table entries to correspond to message zero. The driver can use the SetTableEntry routine to assign a different message ID.
PCI_MSIX_TABLE_CONFIG_INTERFACE