| libvkdaq VKINGING DAQ Library API Reference |

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Functions
Get device attribute value
libvkdaq Function interface » Configuration task

## Functions
int32_t | VkDaqGetDeviceAttribute (const char *dev, const char *attrName, char attrValue[], int32_t size)
| Get device attribute value.

## Detailed Description

## Function Documentation

## ◆ VkDaqGetDeviceAttribute()

int32_t VkDaqGetDeviceAttribute | ( | const char * | dev,
|  | const char * | attrName,
|  | char | attrValue[],
|  | int32_t | size
| ) |  |

Get device attribute value.

data type | parameter | describe
--- | --- | ---
`const char*` | `dev` | Device name or Channel name, such as "dev1", "dev2",etc.
`const char*` | `attrName` | Attribute name, such as "Model", "SamplingFrequency", etc
`char[]` | `attrValue[]` | Character array, used to store attribute values.
`const char*` | `size` | The size of the attrValue arrays.

Returns
  On success, return value >= 0.
  On failure, returns a negative error number.For detail, please Call VkDaqGetLastErrorInfo

Note
  For detailed information about device properties, please refer to the property reference of the corresponding acquisition card below:
  1. VP8388_VP8384_Device_Attributes
  2. VK7016_VK7018_Device_Attributes
  3. VP6068_Device_Attributes

C language reference
#include <stdio.h>
#include "libvkdaq.h"
int main(int argc, char* argv[])
{
const char* dev = "dev1";
const char* attrName = "Model";
char attrValue[4096] = { 0 };
int32_t size = sizeof(attrValue);
int32_t result = VkDaqGetDeviceAttribute(dev, attrName, attrValue,size);
printf("Model = %s \n", attrValue);
if (result >= 0) {
printf("Successful\n");
}
else {
printf("Failed\n");
}
return 0;
}
VkDaqGetDeviceAttribute
int32_t VkDaqGetDeviceAttribute(const char *dev, const char *attrName, char attrValue[], int32_t size)
Get device attribute value.