debian man page for egd_start

EGD_START(3)						       EEGDEV library manual						      EGD_START(3)

NAME
       egd_start, egd_stop - start and stop buffered acquisition

SYNOPSIS
       #include <eegdev.h>

       int egd_start(struct eegdev* dev);
       int egd_stop(struct eegdev* dev);

DESCRIPTION
       egd_start()  marks the beginning of buffered acquisition from the device referenced by dev. This means that the data starts getting accumu-
       lated in an internal ringbuffer and this buffered data can be sequentially obtained by successive  calls  to  egd_get_data(3).  A  buffered
       acquisition started implies that the user has to get the data often enough to prevent the situation of a full ringbuffer.

       egd_stop() halts the buffered acquisition of the device referenced by dev, relieving the user from the obligation to get data regularly.

RETURN VALUE
       The function returns 0 in case of succes. Otherwise, -1 is returned and errno is set accordingly.

ERRORS
       egd_start() and egd_stop() will fail if:

       EINVAL dev is NULL.

SEE ALSO
       egd_get_data(3), egd_get_available(3)

EPFL
								       2010							      EGD_START(3)