I don't know much about how it all works, but I'm sure /usr/doc/HOWTO/Serial-HOWTO gives a reasonable explanation of cua/ttyS matters - it convinced me anyway!
Ed > > There have been various mailings here along the lines of > /dev/cua* names are deprepcated in favour of /dev/ttyS*. > > I was just wondering why the change (and when). I thought it used to > be that ttyS* was dial-in and cua* was dial-out (or possibly > vice-versa). > > I looked in /usr/src/linux/Documentation, and the only reference > I saw was in devices.txt which stated: > > 4 char TTY devices > ... > 64 = /dev/ttyS0 First serial port > ... > 127 = /dev/ttyS63 64th serial port > > 5 char Alternate TTY devices > ... > 64 = /dev/cua0 Callout device corresponding to ttyS0 > ... > 127 = /dev/cua63 Callout device corresponding to ttyS63 > > > I was just wondering, what exactly has changed, and why? > > Richard >
