RS232 modem-side driver - does it exist ?



Hello,

is there in Linux any kind of driver (or driver support infrastructure)
for the DCE end of a RS232 - basically, for running Linux inside a
modem-like device and driving its RS232 interface.

This means especially that the DCD (Data Carrier Detect) and RI (Ring
Indicator) lines must be *output* lines settable by software, not input
lines. It would be best if I could simply use the normal tty_ioctl(4)
interface for that.

I know that there's a concept of "gadget drivers" in the Linux-USB
infrastructure, for running Linux in an USB device. Is there such a
thing for RS232 as well? Or will I have to write my own?

Any help appreciated.

--
Linards Ticmanis

.



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