Query: egd_get_numch
OS: debian
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
EGD_GET_NUMCH(3) EEGDEV library manual EGD_GET_NUMCH(3)NAMEegd_get_numch - Get the number of channels sampled by typeSYNOPSIS#include <eegdev.h> int egd_get_numch(const struct eegdev* dev, int stype);DESCRIPTIONegd_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 VALUEIn 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.ERRORSegd_get_numch() will fail if: EINVAL dev is NULL or stype is not valid value.SEE ALSOegd_get_cap(3), egd_sensor_type(3)EPFL2011 EGD_GET_NUMCH(3)