Hello all, The datasheet for MAX3107 UART (http://datasheets.maximintegrated.com/en/ds/MAX3107.pdf) was updated in February 2015 with a notice that the RxFIFOLvl register may be inaccurate if read while being updated. The respective max310x.c driver actively makes use of the RxFIFOLvl register, but has not been updated since the notice was posted. Does anyone have a workaround to this bug? The notice was phrased as follows: “The RxFIFOLvl register represents the current number of words in the receive FIFO whenever the receive UART is idle. When the receive UART actively receives characters, the value in this register can sometimes be inaccurate if this register is read at the same time that the receive UART updates the receive FIFO. To manage the receive FIFO even when the receive UART is active, do not use this register to determine receive FIFO state. Use the RFIFOEmptyInt bit, the RxTrgInt bit, and the RTimeOut bit instead.” Thanks, Alex -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
