EGD_GET_NUMCH(3) EEGDEV library manual EGD_GET_NUMCH(3)
NAME
egd_get_numch - Get the number of channels sampled by type
SYNOPSIS
#include <eegdev.h>
int egd_get_numch(const struct eegdev* dev, int stype);
DESCRIPTION
egd_get_numch() returns the number of channels of type stype sampled by the recording device referenced by dev. stype must be one of the
values returned by egd_sensor_type(3).
RETURN VALUE
In case of success, the function returns a non negative value corresponding to the number of channels of type stype (possibly 0 if the
device does not sample this type of data). Otherwise, -1 is returned and errno is set accordingly.
ERRORS
egd_get_numch() will fail if:
EINVAL dev is NULL or stype is not valid value.
SEE ALSO
egd_get_cap(3), egd_sensor_type(3)
EPFL
2011 EGD_GET_NUMCH(3)
