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These /dev nodes appear because the standard PC serial port driver is compiled into the kernel you're using, and it is finding UARTs. That causes /sys/devices/platform/serial8250 (or something compatible) to appear, so udev creates the corresponding /dev nodes. These UARTs are most likely one of the many features of your motherboard's chipset. Serial UARTs ...


A Solution: The problem is that this serial port is non-PlugNPlay, and a system do not know which device was plugged in. Anyway, after reading a HowTo I get the working idea. An *nix-OS already have in /dev/ a files like ttySn where a n ending is a number. Most of this files is dumb i.e. doesn't correspond to an existing devices. But some of those is going ...

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