libvkdaq
VKINGING DAQ Library API Reference
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Device Attributes
VK DAQ Attribute
»
VP8388_VP8384
Note
Read: Attributes can be read
Write: Attributes can be written
Use
VkDaqGetDeviceAttribute
to Read device attributes.
For example: Read the device sampling frequency.
char
samplingFrequency[65536] = {0};
int
ret =
VkDaqGetDeviceAttribute
(
"dev1"
,
"SamplingFrequency"
, samplingFrequency,
sizeof
(samplingFrequency) - 1);
VkDaqGetDeviceAttribute
int32_t VkDaqGetDeviceAttribute(const char *dev, const char *attrName, char attrValue[], int32_t size)
Get device attribute value.
Use
VkDaqSetDeviceAttribute
to write device attributes.
For example: write the device sampling frequency.
int
ret =
VkDaqSetDeviceAttribute
(
"dev1"
,
"SamplingFrequency"
,
"100000"
);
VkDaqSetDeviceAttribute
int32_t VkDaqSetDeviceAttribute(const char *dev, const char *attrName, const char *attrValue)
Set device attribute value.