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DlnOpenUsbDevice() Function

The DlnOpenUsbDevice() function opens the device connected to the USB port of local PC. Use this function if your application is intended to work with single device. It cannot be used to select the specific device when multiple devices are connected. If you need to open a specific device, use the DlnOpenUsbDeviceBySn() or DlnOpenUsbDeviceById() functions.

Syntax
C/C++
DLN_RESULT DlnOpenUsbDevice(
   HDLN* deviceHandle
);
Parameters
deviceHandle

A pointer to the HDLN type variable that receives the device handle.

Return Value
DLN_RES_SUCCESS (0x00)

The function successfully opened the DLN device.

DLN_RES_NOT_CONNECTED (0xA1)

In case of server-based interface, the library is not connected to a local server.

DLN_RES_MEMORY_ERROR (0x86)

Not enough memory to process this command.

DLN_RES_HARDWARE_NOT_FOUND (0x81)

No devices are connected to the USB port of local PC.

DLN_RES_DEVICE_REMOVED (0x8E)

The device was disconnected during the function execution.

Remarks

The DlnOpenUsbDevice() function is defined in the dln_generic.h file.

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USB-I2C/SPI/GPIO Interface Adapters © 2016

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