From owner-freebsd-hardware Mon Jun 3 20:38:14 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id UAA10482 for hardware-outgoing; Mon, 3 Jun 1996 20:38:14 -0700 (PDT) Received: from MindBender.HeadCandy.com (root@[199.238.225.168]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id UAA10445 for ; Mon, 3 Jun 1996 20:38:06 -0700 (PDT) Received: from localhost.HeadCandy.com (michaelv@localhost.HeadCandy.com [127.0.0.1]) by MindBender.HeadCandy.com (8.7.5/8.6.9) with SMTP id UAA19022; Mon, 3 Jun 1996 20:37:57 -0700 (PDT) Message-Id: <199606040337.UAA19022@MindBender.HeadCandy.com> X-Authentication-Warning: MindBender.HeadCandy.com: Host michaelv@localhost.HeadCandy.com [127.0.0.1] didn't use HELO protocol To: Sean Eric Fagan cc: hardware@freebsd.org Subject: Re: Hayes ESP In-reply-to: Your message of Mon, 03 Jun 96 20:32:01 -0700. <199606040332.UAA26499@kithrup.com> Date: Mon, 03 Jun 1996 20:37:56 -0700 From: "Michael L. VanLoon -- HeadCandy.com" Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >>I don't see them there... Were >>they based on the ESP mods incorporated into the NetBSD com driver, or >>were they developed independently? Thanks... >They were based on the NetBSD code; I got them from the original author, >John Vinopal, and worked them into FreeBSD. Good deal. I've been using the NetBSD version for several months with no problems. Not to mention that I contributed some improved probe logic back into John's port, which hopefully you picked up too. (If not, I'll see if I can figure out how to fit it into FreeBSD's driver.) >I don't know how much, if any, advantage they have over a simple 16550, >however. When I did the port, Bruce said he didn't think there would be >much improvement, if any, so... Well, I have no hard figures. I did have it record maximum received characters in each input loop, and I don't think it ever got over 35. But, that's 19 more than a 16550 can handle (didn't happen often, though). On the other hand, where I want to use this is on a slooow 386 dial-in server with an IDE drive. I expect to get much enhanced performance out of the ESP card there. :-) ----------------------------------------------------------------------------- Michael L. VanLoon michaelv@HeadCandy.com --< Free your mind and your machine -- NetBSD free un*x >-- NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3, Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32... NetBSD ports in progress: PICA, others... Roll your own Internet access -- Seattle People's Internet cooperative. If you're in the Seattle area, ask me how. -----------------------------------------------------------------------------