SR_PRIV int receive_data_VOLTCRAFT_VC820_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC830_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC840_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC820_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC830_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC840_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC920_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC940_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC960_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC920_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC940_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_VC960_SER(int fd, int revents, void *cb_data);