diff options
Diffstat (limited to 'src/serialbus/doc/src/socketcan.qdoc')
| -rw-r--r-- | src/serialbus/doc/src/socketcan.qdoc | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/serialbus/doc/src/socketcan.qdoc b/src/serialbus/doc/src/socketcan.qdoc index a7cac9f..df58dae 100644 --- a/src/serialbus/doc/src/socketcan.qdoc +++ b/src/serialbus/doc/src/socketcan.qdoc @@ -111,13 +111,21 @@ Next, a connection to a specific interface can be established: \code + QString errorString; QCanBusDevice *device = QCanBus::instance()->createDevice( - QStringLiteral("socketcan"), QStringLiteral("can0")); - device->connectDevice(); + QStringLiteral("socketcan"), QStringLiteral("can0"), &errorString); + if (!device) { + // Error handling goes here + qDebug << errorString; + } else { + device->connectDevice(); + } \endcode Where \e can0 is the active CAN interface name. CAN interfaces act like regular network interfaces on Linux systems and can be discovered using \c ifconfig. + Also, the \l {QCanBus::}{availableDevices()} method returns a list of currently + available devices. The device is now open for writing and reading CAN frames: |