* Sietse Achterop <s.achte...@rug.nl> [2022-07-22 14:45]: > Thanks for the quick response! > Here the strace of both nqc and firmdl3
Thanks, Looking at the kernel module source code, legousbtower does not seems to behave like a tty driver, so it looks normal that the ioctl does not work. Looking at the nqc source code, I can see that the USB driver for linux do not use termcap. I can be wrong because I did not read everything and I do not know nqc at all. Are you sure you have set up nqc to connect using USB? Either: nqc -Susb -firmware firm0332.lgo Or: export RCX_PORT=usb nqc -firmware firm0332.lgo Nicolas.