QUsb Class
This class handles hotplug and device detection. More...
| Header: | #include <QUsb> |
| qmake: | QT += usb |
| Inherits: | QObject |
Note: All functions in this class are reentrant.
Public Types
| class | Config |
| class | Id |
| ConfigList | |
| IdList | |
| enum | LogLevel { logNone, logError, logWarning, logInfo, logDebug, logDebugAll } |
Properties
- logLevel : QUsb::LogLevel
Public Functions
| virtual | ~QUsb() |
| int | findDevice(const QUsb::Id &id, const QUsb::IdList &list) const |
| bool | isPresent(const QUsb::Id &id) const |
| QUsb::LogLevel | logLevel() const |
| void | setLogLevel(QUsb::LogLevel level) |
Public Slots
| bool | addDevice(const QUsb::Id &id) |
| bool | removeDevice(const QUsb::Id &id) |
Signals
| void | deviceInserted(QUsb::Id id) |
| void | deviceRemoved(QUsb::Id id) |
Static Public Members
| QUsb::IdList | devices() |
Protected Slots
| void | checkDevices() |
| void | monitorDevices(const QUsb::IdList &list) |
Detailed Description
Handles USB events and searching. Can be used to monitor events for a list of devices or all system devices.
See also QUsbDevice.
Member Type Documentation
QUsb::ConfigList
List of Config structs.
QUsb::IdList
List of Id structs.
enum QUsb::LogLevel
| Constant | Value | Description |
|---|---|---|
QUsb::logNone | 0 | No debug output |
QUsb::logError | 1 | Errors only |
QUsb::logWarning | 2 | Warning and abose |
QUsb::logInfo | 3 | Info and above |
QUsb::logDebug | 4 | Everything |
QUsb::logDebugAll | 5 | Everything + libusb debug output |
Member Function Documentation
[slot] bool QUsb::addDevice(const QUsb::Id &id)
Add an id device to the list.
Returns false if device was already in the list, else true.
[protected slot] void QUsb::checkDevices()
Check devices present in system.
This gets called by the internal timer.
[signal] void QUsb::deviceInserted(QUsb::Id id)
This is signal is emited when one or more new devices are detected, providing a list.
[signal] void QUsb::deviceRemoved(QUsb::Id id)
This is signal is emited when one or more new devices are removed, providing a list.
[protected slot] void QUsb::monitorDevices(const QUsb::IdList &list)
Add a list to monitor.
[slot] bool QUsb::removeDevice(const QUsb::Id &id)
Remove id device from the list.
Return bool false if device was not in the list, else true.
[virtual] QUsb::~QUsb()
Unregister callbacks and close the usb context.
[static] QUsb::IdList QUsb::devices()
Returns all present devices.
int QUsb::findDevice(const QUsb::Id &id, const QUsb::IdList &list) const
Search an id device in a device list.
Return index of the filter, returns -1 if not found.
bool QUsb::isPresent(const QUsb::Id &id) const
Check if id device is present.
Return bool true if present.
QUsb::LogLevel QUsb::logLevel() const
Get current log level.
Note: Getter function for property logLevel.
See also setLogLevel().
void QUsb::setLogLevel(QUsb::LogLevel level)
Set log level (only hotplug/detection).
Note: Setter function for property logLevel.
See also logLevel().