fossil_count_bytes_waiting fossil_data_avail fossil_deinit fossil_flush_output fossil_force_rts fossil_get_device fossil_get_fd fossil_getbyte fossil_getbyte_wait fossil_initmode fossil_output_done fossil_peek_input fossil_purge_input fossil_purge_output fossil_putbyte fossil_putbyte_wait fossil_read_cts fossil_readblock fossil_readblock_wait fossil_send_break fossil_set_flowcontrol fossil_set_rs485 fossil_set_rs485_txenable fossil_setbaud fossil_setbaud_std fossil_status_request fossil_writeblock fossil_writeblock_wait

fossil_data_avail() int fossil_data_avail ( int  port ) Check if serial data bytes are available. Parameters port port number index: 0=UART1 ... , see FOSSIL_PORT Returns 0 = no data available 1 = data is available -1 = wrong port number Since V0.80