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TUsbStringDescriptor Class Reference

class TUsbStringDescriptor : public TUsbGenericDescriptor

String descriptor

See section 9.6.7 of the USB 2.0 specification.

Intended to be available to 3rd parties later

Inherits from

TUsbStringDescriptor
- TUsbGenericDescriptor

Public Member Functions
	TUsbStringDescriptor ()
IMPORT_C TUsbStringDescriptor *	Cast ( TUsbGenericDescriptor *)
IMPORT_C TInt	GetLangId ( TInt )
TBool	IsParent ( TUsbGenericDescriptor &)
TBool	IsPeer ( TUsbGenericDescriptor &)
TUsbStringDescriptor *	ParseL ( TPtrC8 &, TUsbGenericDescriptor *)
IMPORT_C void	StringData ( TDes16 &)

Inherited Functions
	TUsbGenericDescriptor::DestroyTree()
	TUsbGenericDescriptor::IsChild(TUsbGenericDescriptor &)
	TUsbGenericDescriptor::TUint16At(TInt)const
	TUsbGenericDescriptor::TUint32At(TInt)const
	TUsbGenericDescriptor::TUint8At(TInt)const
	TUsbGenericDescriptor::TUsbGenericDescriptor()
	TUsbGenericDescriptor::operator TCleanupItem()
	TUsbGenericDescriptor::operator=(const TUsbGenericDescriptor &)

Inherited Enumerations
	TUsbGenericDescriptor:TUsbGenericDescriptorFlags

Inherited Attributes
	TUsbGenericDescriptor::KbDescriptorTypeOffset
	TUsbGenericDescriptor::KbLengthOffset
	TUsbGenericDescriptor::iBlob
	TUsbGenericDescriptor::iFirstChild
	TUsbGenericDescriptor::iNextPeer
	TUsbGenericDescriptor::iParent
	TUsbGenericDescriptor::iRecognisedAndParsed
	TUsbGenericDescriptor::ibDescriptorType
	TUsbGenericDescriptor::ibLength

Constructor & Destructor Documentation

TUsbStringDescriptor()

IMPORT_C

TUsbStringDescriptor

(

)

Member Functions Documentation

Cast(TUsbGenericDescriptor *)

IMPORT_C TUsbStringDescriptor *

Cast

(

TUsbGenericDescriptor *

aOriginal

)

[static]

Parameters

TUsbGenericDescriptor * aOriginal

GetLangId(TInt)

IMPORT_C TInt

GetLangId

(

TInt

aIndex

)

const

For string descriptor zero, this function allows a means to iterate through the list of supported languages for strings on this device.

Parameters

TInt aIndex

Index into language ID table.

IsParent(TUsbGenericDescriptor &)

TBool

IsParent

(

TUsbGenericDescriptor &

aPotentialParent

)

[virtual]

Parameters

TUsbGenericDescriptor & aPotentialParent

IsPeer(TUsbGenericDescriptor &)

TBool

IsPeer

(

TUsbGenericDescriptor &

aPotentialPeer

)

[virtual]

Parameters

TUsbGenericDescriptor & aPotentialPeer

ParseL(TPtrC8 &, TUsbGenericDescriptor *)

TUsbStringDescriptor *	ParseL	(	TPtrC8 &	aUsbDes,
			TUsbGenericDescriptor *	aPreviousDesc
		)	[static]

Parameters

TPtrC8 & aUsbDes
TUsbGenericDescriptor * aPreviousDesc

StringData(TDes16 &)

IMPORT_C void

StringData

(

TDes16 &

aString

)

const

Writes the string data into a Symbian descriptor of sufficient size.

Parameters

TDes16 & aString

The Symbian descriptor that will have the string data written into it.