*/fifo_avail_len = LDISC_RX_FIFO_SIZE -kfifo_len(g_stp_uart_rx_fifo);if(fifo_avail_len >0) {//UART_INFO_FUNC ("fifo left(%d), count(%d)\n", fifo_avail_len, count);#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))how_much_put = kfifo_put(g_stp_uart_rx_fifo,(unsignedc...