Mageia forum

The ports are seen, setserial does the usual and reports normally, just can't seem to do anything with them, minicom, or using TunerStudio (Java pgm, uses rxtx lib)

Been doing this since ~93 so this has me a bit stumped, does the same as root, serial ports basically deaf, and I'm out of ideas. machine has worked fine since 2007.0 was new, and still does with Mageia1.
(Itronix Gobook3)

Have a 16550a onboard and a USB Microconnectors dual that has been supported since kernel 2.3.

Does anyone else use serial ports anymore?

Everything else seems to work/look great, on install just the usual video card stuff (start with "3" as an argument, fiddle with XFdrake or load a working xorg.conf before telinit 5) and having to do "clocksource=jiffies" to prevent stalls on startup/shutdown.

There was a thread about serial port usage recently: viewtopic.php?f=7&t=2314

Also, as you have mentioned it, there are some problem with rxtx, have a look at the recent comments on
https://bugs.mageia.org/show_bug.cgi?id=5411 which was actually a cauldron problem, maybe you find a solution there.

If that's the case, would be nice if you could post it here ...

Was a simple permissions problem on the other end...
Experience teaches one how to make subtle, harder to find errors.

Somehow my homedir permissions got set to greg:users while rotating between many distros with the same /home.
There was no "greg" group set up to be a member of.

While "greg" is a member of uucp and dialout groups, "users" is NOT, and as the programs were not suid, the owner defaults to group.

Still not quite 100% sure why it didn't work for root, (or why the "greg" group wasn't created on install) but did not try setuid, likely ran with same hosed permissions.

hope this helps someone.