stephane/libmodbus — pull request #195 by mk8 (2014-01-29 16:56:00+00:00)
Title: Manage DTR signal to handle RS485 bus

Hi,

I have got a linux box where the bus of RS485 is manage by DTR signal instead of RTS signal.
I have already change the code to manage this case.

Only the code is changed, not the documentation