comedi_get_n_channels

Name

comedi_get_n_channels -- number of subdevice channels

Synopsis

#include <comedilib.h>

int comedi_get_n_channels(comedi_t * device, unsigned int subdevice);

Description

The function comedi_get_n_channels() returns the number of channels of the subdevice belonging to the comedi device device and having index subdevice. This function returns -1 on error and the Comedilib error value is set.