Inheritance diagram for UsbHub:

Collaboration diagram for UsbHub:

Classes
class	ConnectionChangeSuppression

struct	RootConnection

class	StartupActivity

struct	SyncParam
	Structure used synchronous transactions. More...

Public Member Functions
	UsbHub (Device *p)

RootConnection	rootConnectionForChild (uint8_t childPort) const

virtual bool	controllerAssignsAddresses () const

virtual bool	supportsHubDevices () const

virtual bool	prepareDevice (uint8_t, const UsbEndpoint &)

virtual bool	addressDevice (uint8_t, const UsbEndpoint &)

virtual bool	resetEndpoint (const UsbEndpoint &)

virtual Type	getType ()

virtual void	addTransferToTransaction (uintptr_t pTransaction, bool bToggle, UsbPid pid, uintptr_t pBuffer, size_t nBytes)=0
	Adds a new transfer to an existent transaction.

virtual uintptr_t	createTransaction (UsbEndpoint endpointInfo)=0
	Creates a new transaction with the given endpoint data.

virtual MUST_USE_RESULT bool	doAsync (uintptr_t pTransaction, void(*pCallback)(uintptr_t, ssize_t)=0, uintptr_t pParam=0)=0

virtual void	cancelAsyncAndDrain (uintptr_t pTransaction, void(*pCallback)(uintptr_t, ssize_t), uintptr_t pParam)=0

virtual MUST_USE_RESULT bool	addInterruptInHandler (UsbEndpoint endpointInfo, uintptr_t pBuffer, uint16_t nBytes, void(*pCallback)(uintptr_t, ssize_t), UsbInterruptInHandle &handle, uintptr_t pParam=0)=0
	Adds an owned recurring interrupt-IN transaction.

bool	deviceConnected (uint8_t nPort, UsbSpeed speed)
	Called when a device is connected to a port on the hub.

void	deviceDisconnected (uint8_t nPort)
	Called when a device is disconnected from a port on the hub.

ssize_t	doSync (uintptr_t nTransaction, uint32_t timeout=5000)

virtual bool	portReset (uint8_t nPort, bool bErrorResponse=false)=0
	Gets a UsbDevice from a given vendor:product pair.

Public Member Functions inherited from Device
	Device (Device *p)

Device *	getParent () const

void	setParent (Device *p)

virtual void	getName (String &str)

virtual const String &	getSpecificType ()

virtual void	setSpecificType (String str)

void	setPciPosition (uint32_t bus, uint32_t device, uint32_t func)

void	setPciIdentifiers (uint8_t classCode, uint8_t subclassCode, uint16_t vendorId, uint16_t deviceId, uint8_t progIf)

void	setPciConfigHeader (const PciBus::ConfigSpace &space)

PciBus::ConfigSpace	getPciConfigHeader () const

uint8_t	getPciClassCode ()

uint8_t	getPciSubclassCode ()

uint16_t	getPciVendorId ()

uint16_t	getPciDeviceId ()

uint8_t	getPciProgInterface ()

uint32_t	getPciBusPosition ()

uint32_t	getPciDevicePosition ()

uint32_t	getPciFunctionNumber ()

virtual void	dump (String &str)

virtual Vector< Address * > &	addresses ()

virtual uintptr_t	getInterruptNumber ()

virtual void	setInterruptNumber (uintptr_t n)

void	addChild (Device *pDevice)

Device *	getChild (size_t n)

size_t	getNumChildren ()

void	removeChild (size_t n)

void	removeChild (Device *d)

void	replaceChild (Device src, Device dest)

Protected Member Functions
virtual bool	beginStartupActivity ()

virtual void	endStartupActivity (UsbStartup::Outcome)

virtual void	releaseDeviceAddress (uint8_t)

MUST_USE_RESULT bool	publishInterruptInHandle (UsbInterruptInHandle &handle, const UsbInterruptInToken &token, void(*callback)(uintptr_t, ssize_t), uintptr_t parameter)

virtual MUST_USE_RESULT bool	cancelInterruptInAndDrain (const UsbInterruptInToken &token, void(*callback)(uintptr_t, ssize_t), uintptr_t parameter, bool producerAlreadyStopped)=0

virtual bool	inInterruptCallbackContext () const

void	disconnectAllDevices ()

void	retainDisconnectedAddressesUntilControllerTeardown ()

void	attachToUpstreamHub (UsbHub *upstream, const RootConnection &connection)

UsbHub *	rootHub () const

MUST_USE_RESULT bool	suppressConnectionChanges (size_t port, ConnectionChangeSuppression &suppression)

MUST_USE_RESULT bool	deferConnectionChangeIfSuppressed (size_t port)

virtual void	replaySuppressedConnectionChange (size_t port)

virtual size_t	currentRootPortGeneration (size_t port) const

Protected Member Functions inherited from Device
	NOT_COPYABLE_OR_ASSIGNABLE (Device)

Private Member Functions
bool	deviceConnectedAdmitted (uint8_t nPort, UsbSpeed speed)

void	deviceDisconnectedLocked (uint8_t nPort)

void	retirePortContainersLocked (uint8_t nPort, bool retiredAddresses, bool pinnedSubtreeAddresses=nullptr)

void	releaseRetiredAddressesLocked (uint8_t nPort, const bool *retiredAddresses)

void	retainAddressLocked (size_t address)

void	releaseAddressLocked (size_t address)

void	retainAddressesLocked (const bool *addresses)

void	releaseAddressesLocked (const bool *addresses)

void	releaseConnectionChangeSuppression (size_t port)

Static Private Member Functions
static void	syncCallback (uintptr_t pParam, ssize_t ret)
	Callback used by synchronous transactions.

static void	collectUsbAddresses (Device device, bool addresses)

static void	collectImmediateUsbContainers (Device device, List< UsbDeviceContainer > &containers)

static void	drainSubtreeProbeAdmissions (UsbDeviceContainer *container)

Private Attributes
ExtensibleBitmap	m_UsedAddresses

size_t	m_AddressReferences [128] = {}

Mutex	m_EnumerationLock

Mutex	m_TopologyLock

Atomic< size_t >	m_ConnectionChangeStates [ConnectionChangePortCount]

UsbHub *	m_RootHub

bool	m_IsRootHub

uint8_t	m_RootPort

size_t	m_RootPortGeneration

bool	m_RetainDisconnectedAddresses = false

Static Private Attributes
static constexpr size_t	ConnectionChangePortCount = 32

static constexpr size_t	ConnectionChangePending

static constexpr size_t	ConnectionChangeCountMask = ~ConnectionChangePending

Friends
class	UsbInterruptInHandle

Additional Inherited Members
Public Types inherited from Device
enum	Type { Generic , Root , Disk , Bus , Display , Network , Sound , Console , Mouse , Controller , UsbController , UsbGeneric , UsbContainer }

typedef Device (	Callback) (Device *)

Static Public Member Functions inherited from Device
static void	foreach (Callback callback, Device *root=0)

template<class F , class... Args>
static void	foreach (pedigree_std::Callable< F > &callback, Device *root, Args... args)

static void	addToRoot (Device *device)

static void	searchByVendorId (uint16_t vendorId, void(callback)(Device ), Device *root=0)

static void	searchByVendorIdAndDeviceId (uint16_t vendorId, uint16_t deviceId, void(callback)(Device ), Device *root=0)

static void	searchByClass (uint16_t classCode, void(callback)(Device ), Device *root=0)

static void	searchByClassAndSubclass (uint16_t classCode, uint16_t subclassCode, void(callback)(Device ), Device *root=0)

static void	searchByClassSubclassAndProgInterface (uint16_t classCode, uint16_t subclassCode, uint8_t progInterface, void(callback)(Device ), Device *root=0)

Static Protected Member Functions inherited from Device
static Device &	root ()

Protected Attributes inherited from Device
Vector< Address * >	m_Addresses

Vector< Device * >	m_Children

Device *	m_pParent

uintptr_t	m_InterruptNumber

String	m_SpecificType

PciBus::ConfigSpace	m_ConfigHeader

uint8_t	m_ClassCode

uint8_t	m_SubclassCode

uint16_t	m_VendorId

uint16_t	m_DeviceId

uint8_t	m_ProgInterface

uint32_t	m_PciBusPos

uint32_t	m_PciDevicePos

uint32_t	m_PciFunctionNum

Static Protected Attributes inherited from Device
static Device	m_Root

static Mutex	m_TreeLock

Detailed Description

Definition at line 83 of file UsbHub.h.

Constructor & Destructor Documentation

◆ UsbHub() [1/2]

UsbHub::UsbHub ( )

Definition at line 177 of file UsbHub.cc.

◆ UsbHub() [2/2]

UsbHub::UsbHub ( Device * p )

Definition at line 183 of file UsbHub.cc.

◆ ~UsbHub()

UsbHub::~UsbHub ( )

virtual

Definition at line 189 of file UsbHub.cc.

Member Function Documentation

◆ addInterruptInHandler()

virtual MUST_USE_RESULT bool UsbHub::addInterruptInHandler	(	UsbEndpoint	endpointInfo,
		uintptr_t	pBuffer,
		uint16_t	nBytes,
		void(*)(uintptr_t, ssize_t)	pCallback,
		UsbInterruptInHandle &	handle,
		uintptr_t	pParam = `0`
	)

pure virtual

Adds an owned recurring interrupt-IN transaction.

Implemented in Xhci, Ehci, Ohci, Uhci, and UsbHubDevice.

Referenced by UsbHubDevice::addInterruptInHandler().

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◆ addressDevice()

virtual bool UsbHub::addressDevice	(	uint8_t	,
		const UsbEndpoint &
	)

inlinevirtual

Definition at line 162 of file UsbHub.h.

◆ addTransferToTransaction()

virtual void UsbHub::addTransferToTransaction	(	uintptr_t	pTransaction,
		bool	bToggle,
		UsbPid	pid,
		uintptr_t	pBuffer,
		size_t	nBytes
	)

pure virtual

Adds a new transfer to an existent transaction.

Implemented in Ehci, Ohci, Uhci, UsbHubDevice, and Xhci.

Referenced by UsbHubDevice::addTransferToTransaction(), and UsbDevice::controlRequestResult().

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◆ attachToUpstreamHub()

void UsbHub::attachToUpstreamHub	(	UsbHub *	upstream,
		const RootConnection &	connection
	)

protected

Associates a downstream hub with its already-initialised parent hub.

Definition at line 249 of file UsbHub.cc.

References m_IsRootHub, m_RootHub, m_RootPort, and m_RootPortGeneration.

◆ beginStartupActivity()

virtual bool UsbHub::beginStartupActivity ( )

inlineprotectedvirtual

Definition at line 323 of file UsbHub.h.

◆ cancelAsyncAndDrain()

virtual void UsbHub::cancelAsyncAndDrain	(	uintptr_t	pTransaction,
		void(*)(uintptr_t, ssize_t)	pCallback,
		uintptr_t	pParam
	)

pure virtual

Cancels an accepted transaction or drains a completion which won the race. On return, the matching callback has run exactly once and the controller can no longer access any transfer buffer.

The callback and parameter identify the original transaction generation, preventing a stale numeric transaction handle from cancelling a reused controller slot.

Implemented in Ehci, Ohci, Uhci, UsbHubDevice, and Xhci.

Referenced by UsbHubDevice::cancelAsyncAndDrain(), and doSync().

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◆ cancelInterruptInAndDrain()

virtual MUST_USE_RESULT bool UsbHub::cancelInterruptInAndDrain	(	const UsbInterruptInToken &	token,
		void(*)(uintptr_t, ssize_t)	callback,
		uintptr_t	parameter,
		bool	producerAlreadyStopped
	)

protectedpure virtual

Stops and drains one exact recurring interrupt-IN subscription.

Implemented in Xhci, Ehci, Ohci, Uhci, and UsbHubDevice.

◆ collectImmediateUsbContainers()

void UsbHub::collectImmediateUsbContainers	(	Device *	device,
		List< UsbDeviceContainer * > &	containers
	)

staticprivate

Definition at line 633 of file UsbHub.cc.

◆ collectUsbAddresses()

void UsbHub::collectUsbAddresses	(	Device *	device,
		bool *	addresses
	)

staticprivate

Definition at line 615 of file UsbHub.cc.

◆ controllerAssignsAddresses()

virtual bool UsbHub::controllerAssignsAddresses ( ) const

inlinevirtual

Definition at line 153 of file UsbHub.h.

◆ createTransaction()

virtual uintptr_t UsbHub::createTransaction ( UsbEndpoint endpointInfo )

pure virtual

Creates a new transaction with the given endpoint data.

Implemented in Xhci, Ehci, Ohci, Uhci, and UsbHubDevice.

Referenced by UsbDevice::controlRequestResult(), and UsbHubDevice::createTransaction().

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◆ currentRootPortGeneration()

virtual size_t UsbHub::currentRootPortGeneration ( size_t port ) const

inlineprotectedvirtual

Current observed connection generation for one HCD root port.

Reimplemented in Uhci, and Xhci.

Definition at line 377 of file UsbHub.h.

Referenced by rootConnectionForChild().

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◆ deferConnectionChangeIfSuppressed()

bool UsbHub::deferConnectionChangeIfSuppressed ( size_t port )

protected

Atomically records an observation only if its suppression scope is still active. False means the caller must process the observation now.

Definition at line 302 of file UsbHub.cc.

References m_ConnectionChangeStates.

Referenced by Ohci::irq(), and Uhci::timer().

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◆ deviceConnected()

bool UsbHub::deviceConnected	(	uint8_t	nPort,
		UsbSpeed	speed
	)

Called when a device is connected to a port on the hub.

Definition at line 387 of file UsbHub.cc.

Referenced by Ehci::executeRequest(), Ohci::executeRequest(), Uhci::executeRequest(), Xhci::executeRequest(), and UsbHubDevice::initialiseDriver().

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◆ deviceConnectedAdmitted()

bool UsbHub::deviceConnectedAdmitted	(	uint8_t	nPort,
		UsbSpeed	speed
	)

private

Definition at line 397 of file UsbHub.cc.

◆ deviceDisconnected()

void UsbHub::deviceDisconnected ( uint8_t nPort )

Called when a device is disconnected from a port on the hub.

Definition at line 545 of file UsbHub.cc.

References m_TopologyLock.

Referenced by disconnectAllDevices(), Ehci::executeRequest(), Ohci::executeRequest(), Uhci::executeRequest(), and Xhci::executeRequest().

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◆ deviceDisconnectedLocked()

void UsbHub::deviceDisconnectedLocked ( uint8_t nPort )

private

Definition at line 550 of file UsbHub.cc.

◆ disconnectAllDevices()

void UsbHub::disconnectAllDevices ( )

protected

Destroys every USB child while the most-derived hub is still live.

Definition at line 216 of file UsbHub.cc.

References Vector< T >::count(), deviceDisconnected(), Device::getType(), Device::m_Children, Device::removeChild(), Device::setParent(), and Device::UsbContainer.

◆ doAsync()

virtual MUST_USE_RESULT bool UsbHub::doAsync	(	uintptr_t	pTransaction,
		void(*)(uintptr_t, ssize_t)	pCallback = `0`,
		uintptr_t	pParam = `0`
	)

pure virtual

Performs a transaction asynchronously.

Returning true transfers one completion obligation to the controller: it must call the callback exactly once, and only after it can no longer access any transfer buffer. Returning false guarantees that the callback was not and will not be called, and that the rejected transaction no longer owns controller or transfer-buffer state.

Implemented in Ehci, Ohci, Uhci, UsbHubDevice, and Xhci.

Referenced by UsbHubDevice::doAsync(), and doSync().

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◆ doSync()

ssize_t UsbHub::doSync	(	uintptr_t	nTransaction,
		uint32_t	timeout = `5000`
	)

Performs a transaction, blocks until it's completed and returns the result

Definition at line 733 of file UsbHub.cc.

References Semaphore::acquireForCompletion(), Semaphore::acquireWithError(), cancelAsyncAndDrain(), doAsync(), and syncCallback().

Referenced by UsbDevice::controlRequestResult().

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◆ drainSubtreeProbeAdmissions()

void UsbHub::drainSubtreeProbeAdmissions ( UsbDeviceContainer * container )

staticprivate

Definition at line 647 of file UsbHub.cc.

◆ endStartupActivity()

virtual void UsbHub::endStartupActivity ( UsbStartup::Outcome )

inlineprotectedvirtual

Definition at line 326 of file UsbHub.h.

◆ getType()

Device::Type UsbHub::getType ( )

virtual

Returns the (abstract) type of the device.

Reimplemented from Device.

Definition at line 245 of file UsbHub.cc.

References Device::UsbController.

◆ inInterruptCallbackContext()

virtual bool UsbHub::inInterruptCallbackContext ( ) const

inlineprotectedvirtual

True when this execution context must not wait for a USB callback.

Reimplemented in Ehci, Ohci, Uhci, and Xhci.

Definition at line 345 of file UsbHub.h.

◆ portReset()

virtual bool UsbHub::portReset	(	uint8_t	nPort,
		bool	bErrorResponse = `false`
	)

pure virtual

Gets a UsbDevice from a given vendor:product pair.

Performs a port reset for the given port. Should only be used in situations where a device cannot recover from an error without a complete reset.

Note: Assumes the port is at CONNECTED with a VALID DEVICE attached.

Parameters

bErrorResponse true if this is a reset as a response to an error. Error responses are allowed to use significantly longer delays in their reset logic.

Implemented in Ehci, Ohci, Uhci, UsbHubDevice, and Xhci.

◆ prepareDevice()

virtual bool UsbHub::prepareDevice	(	uint8_t	,
		const UsbEndpoint &
	)

inlinevirtual

Definition at line 159 of file UsbHub.h.

◆ publishInterruptInHandle()

bool UsbHub::publishInterruptInHandle	(	UsbInterruptInHandle &	handle,
		const UsbInterruptInToken &	token,
		void(*)(uintptr_t, ssize_t)	callback,
		uintptr_t	parameter
	)

protected

Publishes a controller token into an empty caller-owned handle.

Definition at line 206 of file UsbHub.cc.

Referenced by Ehci::addInterruptInHandler().

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◆ releaseAddressesLocked()

void UsbHub::releaseAddressesLocked ( const bool * addresses )

private

Definition at line 690 of file UsbHub.cc.

◆ releaseAddressLocked()

void UsbHub::releaseAddressLocked ( size_t address )

private

Definition at line 673 of file UsbHub.cc.

◆ releaseConnectionChangeSuppression()

void UsbHub::releaseConnectionChangeSuppression ( size_t port )

private

Definition at line 330 of file UsbHub.cc.

◆ releaseDeviceAddress()

virtual void UsbHub::releaseDeviceAddress ( uint8_t )

inlineprotectedvirtual

The last interface and subtree pin released this logical address.

Reimplemented in Xhci.

Definition at line 330 of file UsbHub.h.

◆ releaseRetiredAddressesLocked()

void UsbHub::releaseRetiredAddressesLocked	(	uint8_t	nPort,
		const bool *	retiredAddresses
	)

private

Definition at line 697 of file UsbHub.cc.

◆ replaySuppressedConnectionChange()

void UsbHub::replaySuppressedConnectionChange ( size_t port )

protectedvirtual

Re-publishes one coalesced observation in ordinary thread context.

Reimplemented in Ehci, Ohci, Uhci, and Xhci.

Definition at line 370 of file UsbHub.cc.

References Dec, and Hex.

◆ resetEndpoint()

virtual bool UsbHub::resetEndpoint ( const UsbEndpoint & )

inlinevirtual

Definition at line 165 of file UsbHub.h.

◆ retainAddressesLocked()

void UsbHub::retainAddressesLocked ( const bool * addresses )

private

Definition at line 683 of file UsbHub.cc.

◆ retainAddressLocked()

void UsbHub::retainAddressLocked ( size_t address )

private

Definition at line 666 of file UsbHub.cc.

◆ retainDisconnectedAddressesUntilControllerTeardown()

void UsbHub::retainDisconnectedAddressesUntilControllerTeardown ( )

protected

Keeps descendant addresses reserved when hardware cannot be reset.

Definition at line 241 of file UsbHub.cc.

References m_RetainDisconnectedAddresses.

Referenced by UsbHubDevice::prepareForDriverRetirement().

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◆ retirePortContainersLocked()

void UsbHub::retirePortContainersLocked	(	uint8_t	nPort,
		bool *	retiredAddresses,
		bool *	pinnedSubtreeAddresses = `nullptr`
	)

private

Definition at line 563 of file UsbHub.cc.

◆ rootConnectionForChild()

UsbHub::RootConnection UsbHub::rootConnectionForChild ( uint8_t childPort ) const

Resolves a child port to its root-controller connection generation.

Definition at line 200 of file UsbHub.cc.

References currentRootPortGeneration(), m_IsRootHub, m_RootPort, and m_RootPortGeneration.

Referenced by UsbDevice::UsbDevice().

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◆ rootHub()

UsbHub * UsbHub::rootHub ( ) const

inlineprotected

Returns the HCD which owns address allocation for this hierarchy.

Definition at line 359 of file UsbHub.h.

◆ supportsHubDevices()

virtual bool UsbHub::supportsHubDevices ( ) const

inlinevirtual

Definition at line 156 of file UsbHub.h.

◆ suppressConnectionChanges()

bool UsbHub::suppressConnectionChanges	(	size_t	port,
		ConnectionChangeSuppression &	suppression
	)

protected

Begins one nested root-port suppression scope.

Definition at line 263 of file UsbHub.cc.

References Dec, Hex, Scheduler::instance(), m_ConnectionChangeStates, and Scheduler::yield().

◆ syncCallback()

void UsbHub::syncCallback	(	uintptr_t	pParam,
		ssize_t	ret
	)

staticprivate

Callback used by synchronous transactions.

Definition at line 712 of file UsbHub.cc.

References Semaphore::release().

Referenced by doSync().

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Friends And Related Symbol Documentation

◆ UsbInterruptInHandle

friend class UsbInterruptInHandle

friend

Definition at line 328 of file UsbHub.h.

Member Data Documentation

◆ ConnectionChangeCountMask

constexpr size_t UsbHub::ConnectionChangeCountMask = ~ConnectionChangePending

staticconstexprprivate

Definition at line 302 of file UsbHub.h.

◆ ConnectionChangePending

constexpr size_t UsbHub::ConnectionChangePending

staticconstexprprivate

Initial value:

=

static_cast<size_t>(1) << ((sizeof(size_t) * 8) - static_cast<size_t>(1))

Definition at line 300 of file UsbHub.h.

◆ ConnectionChangePortCount

constexpr size_t UsbHub::ConnectionChangePortCount = 32

staticconstexprprivate

Definition at line 299 of file UsbHub.h.

◆ m_AddressReferences

size_t UsbHub::m_AddressReferences[128] = {}

private

Live owners plus temporary subtree-retirement pins for each address.

Definition at line 291 of file UsbHub.h.

◆ m_ConnectionChangeStates

Atomic<size_t> UsbHub::m_ConnectionChangeStates[ConnectionChangePortCount]

private

One atomic publication state per USB 2 root-port slot.

Definition at line 305 of file UsbHub.h.

Referenced by deferConnectionChangeIfSuppressed(), and suppressConnectionChanges().

◆ m_EnumerationLock

Mutex UsbHub::m_EnumerationLock

private

Serializes default-address enumeration and address ownership.

Definition at line 294 of file UsbHub.h.

◆ m_IsRootHub

bool UsbHub::m_IsRootHub

private

Device-taking construction identifies an HCD rather than a USB hub.

Definition at line 311 of file UsbHub.h.

Referenced by attachToUpstreamHub(), and rootConnectionForChild().

◆ m_RetainDisconnectedAddresses

bool UsbHub::m_RetainDisconnectedAddresses = false

private

Driver-only unbind cannot prove downstream devices stopped answering.

Definition at line 320 of file UsbHub.h.

Referenced by retainDisconnectedAddressesUntilControllerTeardown().

◆ m_RootHub

UsbHub* UsbHub::m_RootHub

private

Shared address-allocation owner for this hub hierarchy.

Definition at line 308 of file UsbHub.h.

Referenced by attachToUpstreamHub().

◆ m_RootPort

uint8_t UsbHub::m_RootPort

private

Root-controller port through which this downstream hub is reached.

Definition at line 314 of file UsbHub.h.

Referenced by attachToUpstreamHub(), and rootConnectionForChild().

◆ m_RootPortGeneration

size_t UsbHub::m_RootPortGeneration

private

Root connection generation captured by the downstream hub device.

Definition at line 317 of file UsbHub.h.

Referenced by attachToUpstreamHub(), and rootConnectionForChild().

◆ m_TopologyLock

Mutex UsbHub::m_TopologyLock

private

Serializes connection generations published by this hub.

Definition at line 297 of file UsbHub.h.

Referenced by deviceDisconnected().

◆ m_UsedAddresses

ExtensibleBitmap UsbHub::m_UsedAddresses

private

Bitmap of used addresses under this hub

Note: valid only for root hubs

Definition at line 288 of file UsbHub.h.

The documentation for this class was generated from the following files:

Classes

Public Member Functions

Protected Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ UsbHub() [1/2]

◆ UsbHub() [2/2]

◆ ~UsbHub()

Member Function Documentation

◆ addInterruptInHandler()

◆ addressDevice()

◆ addTransferToTransaction()

◆ attachToUpstreamHub()

◆ beginStartupActivity()

◆ cancelAsyncAndDrain()

◆ cancelInterruptInAndDrain()

◆ collectImmediateUsbContainers()

◆ collectUsbAddresses()

◆ controllerAssignsAddresses()

◆ createTransaction()

◆ currentRootPortGeneration()

◆ deferConnectionChangeIfSuppressed()

◆ deviceConnected()

◆ deviceConnectedAdmitted()

◆ deviceDisconnected()

◆ deviceDisconnectedLocked()

◆ disconnectAllDevices()

◆ doAsync()

◆ doSync()

◆ drainSubtreeProbeAdmissions()

◆ endStartupActivity()

◆ getType()

◆ inInterruptCallbackContext()

◆ portReset()

◆ prepareDevice()

◆ publishInterruptInHandle()

◆ releaseAddressesLocked()

◆ releaseAddressLocked()

◆ releaseConnectionChangeSuppression()

◆ releaseDeviceAddress()

◆ releaseRetiredAddressesLocked()

◆ replaySuppressedConnectionChange()

◆ resetEndpoint()

◆ retainAddressesLocked()

◆ retainAddressLocked()

◆ retainDisconnectedAddressesUntilControllerTeardown()

◆ retirePortContainersLocked()

◆ rootConnectionForChild()

◆ rootHub()

◆ supportsHubDevices()

◆ suppressConnectionChanges()

◆ syncCallback()

Friends And Related Symbol Documentation

◆ UsbInterruptInHandle

Member Data Documentation

◆ ConnectionChangeCountMask

◆ ConnectionChangePending

◆ ConnectionChangePortCount

◆ m_AddressReferences

◆ m_ConnectionChangeStates

◆ m_EnumerationLock

◆ m_IsRootHub

◆ m_RetainDisconnectedAddresses

◆ m_RootHub

◆ m_RootPort

◆ m_RootPortGeneration

◆ m_TopologyLock

◆ m_UsedAddresses