Dear all, I'm facing lots of issue with this driver, it seems totally unreliable in my tests. I'm using 4 sc16is762 (dual uart) connected to SPI bus on a raspberrypi 3, for a total of 8 serial ports. My hardware configuration is set up as follow: RPI SPI-0: 2 chips using 2 different CS and 2 different IRQ RPI SPI-1: 2 chips using 2 different CS and 2 different IRQ I can use one serial port at a time without problems, thus I'm quite sure the hardware is wired and configured correctly. But when I try to run more that one serial port at "the same time" (fe 2 different process that use 2 different serial port) the driver start to behave like crazy: sometimes it hangs the kernel, sometimes it loose bytes, sometimes one of the uart stop receiving bytes until a port close/open. I have tried various changes in the driver that is making the situation a bit better but still I have not reached a situation where 2 ports can run without hanging in some way. Before starting to explain in details my problems I would like to understand if someone else is using this driver in a similar configuration, or if there are some know issue that I'm not aware of. Thanks in advance and best regards -- 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
