SR_PRIV int receive_data_RADIOSHACK_22_812(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_VC840_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_RADIOSHACK_22_812(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_VC840_SER(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_UNI_T_UT61E_SER(int fd, int revents, void *cb_data);
SR_PRIV void dmm_details_tp4000zc(struct sr_datafeed_analog *analog, void *info);
SR_PRIV int receive_data_UNI_T_UT61E_SER(int fd, int revents, void *cb_data);
SR_PRIV void dmm_details_tp4000zc(struct sr_datafeed_analog *analog, void *info);