file:open on devices

[Alexey Romanov]

I have tried to use sl to communicate with a serial port, but with
limited success (so far, at least). The next thing to try was just
opening the file and reading/writing directly to it, but this fails as
well:

(documentation of file:open/2)
Typical error reasons:

eisdir

    The named file is not a regular file. It may be a directory, a
fifo, or a device.

Is it possible to open device files using some other library function?

Yours, Alexey Romanov