Re: tty line discipline driver advice sought, to do a 1-byte header and 2-byte CRC checksum on GSM data

> userspace, which would be a hell of a lot easier, but would make
> applications a pain, because they would need to use a library instead of
> just opening /dev/ttySN just like any other phone app, to transfer AT
> commands.

Like gnokii for example ?

You can do both - use a pty/tty pair to front the daemon
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