Hello,
Just a little mail to said that compiling alsa-driver with Fedora and rh
will generate an error on serialmidi.c file.
The solution is to change on line 164 of the serialmidi.c file the :"
if (tty->count > 1) { " line with "if (tty->count.counter > 1) {"
All will work fine after that.
Have a nice day.
Martial LOPEZ