Date: Mon, 03 Jun 1996 20:37:56 -0700 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com> To: Sean Eric Fagan <sef@kithrup.com> Cc: hardware@freebsd.org Subject: Re: Hayes ESP Message-ID: <199606040337.UAA19022@MindBender.HeadCandy.com> In-Reply-To: Your message of Mon, 03 Jun 96 20:32:01 -0700. <199606040332.UAA26499@kithrup.com>
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>>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. :-)
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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.
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