内容

• 公共函数
• 详细描述

QCanBusDeviceInfo 类

QCanBusDeviceInfo 提供有关 CAN Bus 接口的信息。 更多...

头：	#include <QCanBusDeviceInfo>
qmake:	QT += serialbus
Since:	Qt 5.9

• 所有成员列表，包括继承成员

公共函数

	QCanBusDeviceInfo (const QCanBusDeviceInfo & other )
QCanBusDeviceInfo &	operator= (QCanBusDeviceInfo && other )
QCanBusDeviceInfo &	operator= (const QCanBusDeviceInfo & other )
	~QCanBusDeviceInfo ()
QString	alias () const
int	channel () const
QString	description () const
bool	hasFlexibleDataRate () const
bool	isVirtual () const
QString	name () const
QString	plugin () const
QString	serialNumber () const
void	swap (QCanBusDeviceInfo & other )

详细描述

Each plugin may support one or more interfaces with different capabilities. This class provides information about available functions.

成员函数文档编制

QCanBusDeviceInfo:: QCanBusDeviceInfo (const QCanBusDeviceInfo & other )

构造副本为 other .

QCanBusDeviceInfo &QCanBusDeviceInfo:: operator= ( QCanBusDeviceInfo && other )

Move-assigns other to this QCanBusDeviceInfo 实例。

QCanBusDeviceInfo &QCanBusDeviceInfo:: operator= (const QCanBusDeviceInfo & other )

赋值 other to this CAN bus device info and returns a reference to this CAN bus device info.

QCanBusDeviceInfo:: ~QCanBusDeviceInfo ()

销毁 CAN 总线设备信息。

[since 6.0] QString QCanBusDeviceInfo:: alias () const

Returns a user defineable alias associated with this CAN bus interface.

Some CAN bus interfaces can have a user defined alias associated. This is mostly done with the CAN hardware vendors tools. The alias allows to identify this hardware later, especially when multiple interfaces are connected.

注意： In contrast to serialNumber (), the alias is not guaranteed to be unique.

If that function is not supported by the CAN plugin, an empty string is returned.

该函数在 Qt 6.0 引入。

另请参阅 serialNumber ().

[since 5.11] int QCanBusDeviceInfo:: channel () const

Returns the sequential channel number of the CAN bus interface, starting with zero. For example, a two channel CAN interface may have the channels 0 and 1. If the interface has only one channel or if no information about the channel is available, zero is returned.

该函数在 Qt 5.11 引入。

[since 5.11] QString QCanBusDeviceInfo:: description () const

Returns a textual description of the CAN bus interface, if available. Example output: "PCAN USB Pro FD". If no description is available, an empty string is returned.

该函数在 Qt 5.11 引入。

bool QCanBusDeviceInfo:: hasFlexibleDataRate () const

Returns true, if the CAN bus interface is CAN FD (flexible data rate) capable.

If this information is not available, false is returned.

bool QCanBusDeviceInfo:: isVirtual () const

Returns true, if the CAN bus interface is virtual (i.e. not connected to real CAN hardware).

If this information is not available, false is returned.

QString QCanBusDeviceInfo:: name () const

Returns the interface name of this CAN bus interface, e.g. "can0".

This corresponds to the interfaceName parameter of QCanBus::createDevice ().

[since 6.2] QString QCanBusDeviceInfo:: plugin () const

Returns the plugin name of this CAN bus interface, e.g. "peakcan".

This corresponds to the plugin parameter of QCanBus::createDevice ().

该函数在 Qt 6.2 引入。

[since 5.11] QString QCanBusDeviceInfo:: serialNumber () const

Returns the serial number of the CAN bus interface as string, if available. Otherwise, an empty string is returned.

该函数在 Qt 5.11 引入。

另请参阅 alias ().

void QCanBusDeviceInfo:: swap ( QCanBusDeviceInfo & other )

Swaps this CAN bus device info with other 。此操作非常快且从不失败。