hubregistry.h File Reference

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Classes
struct	HubIdStrings

Macros
#define	HUB_MSG_REGISTRY_FAILURE   0x40011006

Functions
VOID NTAPI	HubFormatIdStrings (_In_ const USB_DEVICE_DESCRIPTOR *Descriptor, _Out_ HubIdStrings *Ids)
	_IRQL_requires_ (PASSIVE_LEVEL) NTSTATUS NTAPI HubRegReadValue(_In_ WDFKEY Key
	Sends a synchronous IOCTL to the specified device object.
_In_ PCWSTR _In_ ULONG	_Out_writes_bytes_ (Size) PVOID Data)
_In_ PCWSTR	_In_reads_bytes_ (Size) PVOID Data

Variables
_In_ PCWSTR	Name
_In_ PCWSTR _In_ ULONG	Size

Macro Definition Documentation

HUB_MSG_REGISTRY_FAILURE

#define HUB_MSG_REGISTRY_FAILURE   0x40011006

Definition at line 11 of file hubregistry.h.

Function Documentation

_In_reads_bytes_()

_In_ PCWSTR _In_reads_bytes_

(

Size

)

_IRQL_requires_()

_IRQL_requires_

(

PASSIVE_LEVEL

)

Sends a synchronous IOCTL to the specified device object.

Reads up to Size bytes of a value into a zeroed buffer; the type is not checked.

Writes a REG_BINARY value into the device's usbflags subkey.

Sets or clears ExtPropertiesInstalled from ExtPropDescSemaphore in the hardware key.

Definition at line 2121 of file class.c.

{
    NTSTATUS status = STATUS_SUCCESS;
 
    PAGED_CODE();
 
    TracePrint((TRACE_LEVEL_VERBOSE,
                TRACE_FLAG_PNP,
                "ClassDetermineTokenOperationCommandSupport (%p): Entering function.\n",
                DeviceObject));
 
    //
    // Send down Inquiry for VPD_THIRD_PARTY_COPY_PAGE and cache away the device parameters
    // from WINDOWS_BLOCK_DEVICE_TOKEN_LIMITS_DESCRIPTOR.
    //
    status = ClasspGetBlockDeviceTokenLimitsInfo(DeviceObject);
 
    if (NT_SUCCESS(status)) {
 
        ULONG maxListIdentifier = MaxTokenOperationListIdentifier;
 
        //
        // Query the maximum list identifier to use for TokenOperation commands.
        //
        if (NT_SUCCESS(ClasspGetMaximumTokenListIdentifier(DeviceObject, REG_DISK_CLASS_CONTROL, &maxListIdentifier))) {
            if (maxListIdentifier >= MIN_TOKEN_LIST_IDENTIFIERS) {
 
                NT_ASSERT(maxListIdentifier <= MAX_TOKEN_LIST_IDENTIFIERS);
                MaxTokenOperationListIdentifier = maxListIdentifier;
            }
        }
 
    }
 
    TracePrint((TRACE_LEVEL_VERBOSE,
                TRACE_FLAG_PNP,
                "ClassDetermineTokenOperationCommandSupport (%p): Exiting function with status %x.\n",
                DeviceObject,
                status));
 
    return status;
}

_Out_writes_bytes_()

_In_ PCWSTR _In_ ULONG _Out_writes_bytes_

(

Size

)

Definition at line 108 of file hubregistry.cpp.

{
    UNICODE_STRING ValueName;
 
    RtlZeroMemory(Data, Size);
    RtlInitUnicodeString(&ValueName, Name);
 
    return WdfRegistryQueryValue(Key, &ValueName, Size, Data, NULL, NULL);
}

HubFormatIdStrings()

VOID NTAPI HubFormatIdStrings	(	_In_ const USB_DEVICE_DESCRIPTOR *	Descriptor,
		_Out_ HubIdStrings *	Ids
	)

Definition at line 59 of file hubregistry.cpp.

{
    RtlStringCbPrintfA(Ids->Vendor, sizeof(Ids->Vendor), "%04X", Descriptor->idVendor);
    RtlStringCbPrintfA(Ids->Product, sizeof(Ids->Product), "%04X", Descriptor->idProduct);
    RtlStringCbPrintfA(Ids->Revision, sizeof(Ids->Revision), "%04X", Descriptor->bcdDevice);
}

Referenced by HubMachine::QueryErrataFlags(), and DeviceMachine::QueryRegistryValues().

Variable Documentation

Name

_In_ PCWSTR Name

Definition at line 33 of file hubregistry.h.

Size

_In_ PCWSTR _In_ ULONG Size

Definition at line 34 of file hubregistry.h.