From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from viefep12-int.chello.at (viefep12-int.chello.at [213.46.255.25]) by dsl2.external.hp.com (Postfix) with ESMTP id 76C694829 for ; Tue, 1 Apr 2003 12:16:59 -0700 (MST) Message-ID: <3E89E5A7.9030204@gmx.at> Date: Tue, 01 Apr 2003 21:16:55 +0200 From: Christoph Plattner MIME-Version: 1.0 To: Ryan Bradetich Cc: knaresh@india.hp.com, parisc-linux@lists.parisc-linux.org Subject: Re: [parisc-linux] PDC console problem. References: <3E89DBF4.102AC68A@india.hp.com> <1049181423.24319.17.camel@beavis.ybsoft.com> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: Hello ! The PDC driver supports both directions, IN and OUT. The PDC console driver was ported from the full serial driver interface, some services not needed for poor console support are dummy routines. So the serial console cannot be used for MODEM and other full-blown serial devices, but is a fully functional console device including all UNIX like features (login is working like on all other serial devices). He Ryan, by the way: Why is my driver (PDC console) NOT in the mainstream kernel 2.5 ? Even your driver covers a couple of machines, I do not see in the MUX driver the replacement ! I agree, that the MUX driver should be used on machines with that MUX interface. But the idea of my PDC driver was to support a fallback driver using the ROM console usable on all machines, independent of special setups. I many architectures such a fallback driver is present. I remeber the case, there was an failure in the HW-detection on my SUN Sparc-2, and the kernel used a ROM console driver instead of the frame buffer driver for screen/keyboard. This driver was awfully slow, and I do not recommand it, but such a fallback driver should part of a kernel delivery !! So we should think about adding this driver also, independent of al the other drivers included for console (and although the other drivers should alwaysb be preferred). Christoph Ryan Bradetich wrote: >>I was going through some of the FAQ and the mailing list archive and >>understand that the PDC console is not a full blown console and can only >>display output. Is is true that the PDC console cannot accept keyboard >>input? Or am I missing something? > > > Hmm.. The pdc_console has both read and write capabilities. We used the > PDC console for K/E class systems before the SerialMux driver was > written. I am not familiar with the PDC simulator, but I would be > willing to test the pdc console again on K-Class. > > Which kernel are you using? > > Thanks, > > - Ryan > > -- ------------------------------------------------------- private: christoph.plattner@gmx.at company: christoph.plattner@alcatel.at