Hi there, hopefuly this message is going to the right people. I wrote a small virtual serial loop back driver and I have some questions in regard to that. First, the driver basically creates a set of serial port device pairs (/dev/ttySL0, /dev/ttySL1, etc) and if some programs talks to one of this ports, the counterpart port will receive all data and vice versa. This is usful for writing a simulator of a hardware device which has a serial port, without having to connect to real serial ports together with a null modem cable or something like that. I'm using to develop a simulator of Webasto W-Bus (ODB-II) car heating device. The driver can optionally do line echo, required for K-Line emulation. Now the questions: - Did I really need to write a driver like this or are there any trivial tricks to accomplish this somehow else ? Note, that the software to talk to my simulator is a propietary windows executable (using wine), thus I can not modify it. And my computer has only one single serial port (and I would need to buy a second ODB-II hardware adapter anyway, software is way much cheaper). - Is this useful to anyone ? I think it is :) and it would be kind of stupid if anyone requiring this would have to either use 2 hardware ports or write another driver like this. But maybe I'm wrong, I dont know. - Is this driver worth to be part of the Linux mainline tree ? Probably some adjustment would be required... source code is available here: http://micro.homelinux.net/~mjander/serial_loop.zip It did built on 2.6.28, hopefuly it also does on the current vanilla tree. Best Regards, Manuel -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
