ADC_GetSampleBitCount Function

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Header: #include <applibs/adc.h>

Gets the bit depth of the ADC.

int ADC_GetSampleBitCount(int fd, ADC_ChannelId channel);

Parameters

  • fd The file descriptor for the ADC controller. The file descriptor is retrieved by ADC_Open.

  • channel The ID of the ADC channel to access. The range of allowed values is controller-dependent and is typically a zero-based index.

Return value

Returns the bit depth of the ADC. If an error is encountered, returns -1 and sets errno to the error value.

Remarks

An example return value is 12, which indicates that the ADC controller can supply 12 bits of data that range from 0 to 4095.

Application manifest requirements

To access an ADC controller, your application must identify it in the Adc field of the application manifest.