From owner-freebsd-hackers Tue Sep 9 07:14:37 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id HAA10878 for hackers-outgoing; Tue, 9 Sep 1997 07:14:37 -0700 (PDT) Received: from relay.Germany.EU.net (relay.germany.eu.net [192.76.144.64]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id HAA10864 for ; Tue, 9 Sep 1997 07:14:28 -0700 (PDT) From: Bernard.Steiner@de.uu.net Received: from qwerty.germany.eu.net [193.96.65.12] by relay.Germany.EU.net with SMTP (5.61c:012/2.7.0.l-relay) id QAA24791; Tue, 9 Sep 1997 16:12:24 +0200 (MET DST) Message-Id: <199709091414.QAA12742@qwerty.de.uu.net> Received: from qwerty.Germany.EU.net by qwerty.de.uu.net with ESMTP (8.6.4/UUNETdeLAN-2.1a16-1.2.10) via EUnet for [mail.de.uu.net] id QAA12742; Tue, 9 Sep 1997 16:14:23 +0200 To: hackers@freebsd.org Subject: lpt ECS support. Date: Tue, 09 Sep 1997 16:14:18 +0200 Sender: owner-freebsd-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi folks, forgive me if this is an inappropriate mailing list (do give me a pointer) - I have recently hacked up the 2.2.2 i386/isa/lpt driver to provide basic support for some advanced features of the ECP parallel port that comes with my motherboard, currently including - re-vectoring of lpt interrupt - use of the ECP fifo for "fast centronics" printing (both polled and IRQ) - use of the ECP DMA channel (including auto-vectoring) to the ECP fifo for "fast centronics" printing (IRQ only) - ioctls to en/disable above, including hacked up lptcontrol I'd like to know whether anybody (a) is interested in this, if so, where to send it (b) knows about a way to poll for DMA finished situations such that DMA polled mode may work (c) is working on integration of lpt as a proper tty (and get the if_lp stuff out of lpt.c) to eventually allowing ieee1284 compliant lptread(). I looked at sio.c and find siopoll() rather confusing... Ta Bernard Bernard Steiner, UUNET Deutschland GmbH, vox +49 231 972 00 Emil-Figge-Str. 80, D-44227 Dortmund, Germany fax +49 231 972 1111 Bernard.Steiner@de.uu.net >>Fast alle Raucherinnen sind weiblich.<< PGP 0x1D7C589D fingerprint 57 50 3A C1 95 71 5B 37 3A 7D B3 D0 5F 1F 60 36