On Tue, Aug 01, 2017 at 11:52:01AM +0200, michael.moese@xxxxxx wrote: > Dear serial folks, > I am currently trying to port an out-of-tree 8250-driver to be ready for > upstreaming. The UART port we have in our FPGA is a 16550, and the driver is an > MCB-Driver. > In my system I got two ports. serial8250_register_8250_port() returns > "8" and "9". If I understood things right, these would be associated to > /dev/ttyS8 and /dev/ttyS9. However, if I try to open a terminal (picocom > in my case), I get an error: "Filedes is not a tty". > > My dmesg output shows my prints, but nothing about the tty's. > I don't know what I am doing wrong here, I don't see relevant difference > to our legacy driver, which always worked. Is your debugging messages getting printed out when your device is probed? Do you see /dev/ttyS8 and 9 being created by the kernel when the device is found? thanks, greg k-h -- 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
