km@EMORY.ARPA (Ken Mandelberg) (03/18/87)
I was hoping to use the console port on a MicrovaxII with a port selector. The port selector needs DTR/DCD to operate properly to work reasonably. (DTR should be up when the port is available and toggle when the Vax drops a session, the Vax should wait for DCD before taking input from the port). We use 4.3BSD on the microvax, but I am really asking about the Vax hardware/firmware, not the OS software. Does the hardware/firmware have the ability to properly deal with DTR/DCD? I can see from the source to the BSD and Ultrix drivers that there is no such support in the driver. Unlike the drivers for the terminal multiplexors, the console driver seems to punt and just issue some native Vax instructions and let the hardware/firmware do the work. Please reply with any info by mail. Thanks
km@EMORY.ARPA (Ken Mandelberg) (03/19/87)
Newsgroups: mod.computers.vax Keywords: DTR/DCD I was hoping to use the console port on a MicrovaxII with a port selector. The port selector needs DTR/DCD to operate properly to work reasonably. (DTR should be up when the port is available and toggle when the Vax drops a session, the Vax should wait for DCD before taking input from the port). We use 4.3BSD on the microvax, but I am really asking about the Vax hardware/firmware, not the OS software. Does the hardware/firmware have the ability to properly deal with DTR/DCD? I can see from the source to the BSD and Ultrix drivers that there is no such support in the driver. Unlike the drivers for the terminal multiplexors, the console driver seems to punt and just issue some native Vax instructions and let the hardware/firmware do the work. Please reply with any info by mail. Thanks