On Thursday, 09/28/2006 at 03:08 EST, "McKown, John" <[EMAIL PROTECTED]> wrote: > Very basic and I know the answer, but I'll ask the question anyway. On > the HMC of my z890, there is an ICON for the "integrated ASCII console". > I know that this exists only for z/Linux systems running "native" in an > LPAR (not under z/VM). Does anybody know how this works? I.e. how does > it communicate with the z/Linux software? I would guess that output from > z/Linux would be directed to it via a DIAGNOSE code of some sort. And > input via an external interrupt, followed by a DIAGNODE code to "read" > the data? Or does it use the SIGA interface, like an OSA? > > Just curiousity on my part due to some discussions on the z/Linux forum.
It uses neither. Look at the VT220 support in http://lxr.linux.no/source/drivers/s390/char for "details" (such as they are). Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
