From owner-freebsd-hackers Fri Aug 25 02:34:14 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.FreeBSD.org (8.6.11/8.6.6) id CAA19421 for hackers-outgoing; Fri, 25 Aug 1995 02:34:14 -0700 Received: from critter.tfs.com ([140.145.230.252]) by freefall.FreeBSD.org (8.6.11/8.6.6) with ESMTP id CAA19413 for ; Fri, 25 Aug 1995 02:34:11 -0700 Received: from localhost (localhost [127.0.0.1]) by critter.tfs.com (8.6.11/8.6.9) with SMTP id CAA00576; Fri, 25 Aug 1995 02:30:35 -0700 X-Authentication-Warning: critter.tfs.com: Host localhost didn't use HELO protocol To: "Jordan K. Hubbard" cc: Poul-Henning Kamp , jgreco@brasil.moneng.mei.com (Joe Greco), terryl@CS.Stanford.EDU, freebsd-hackers@freebsd.org Subject: Re: ISDN Anyone? In-reply-to: Your message of "Thu, 24 Aug 1995 19:26:44 PDT." <20546.809317604@time.cdrom.com> Date: Fri, 25 Aug 1995 02:30:35 -0700 Message-ID: <574.809343035@critter.tfs.com> From: Poul-Henning Kamp Sender: hackers-owner@freebsd.org Precedence: bulk > > There is actually a lot more promise in a 16550 or 16650 at 460800 bps. > > You only get 1/16th or 1/32th the number of interrupts. > > Hmmm. I find that the serial interrupt overhead is pretty intense at 115.2 > even with a 16550. You know some secret for doing this I don't? Yes, make sure you have a 16550AN (I belive the 'A' is the important part). The fifo's didn't work on the first "16550" parts. -- Poul-Henning Kamp | phk@FreeBSD.ORG FreeBSD Core-team. http://www.freebsd.org/~phk | phk@login.dknet.dk Private mailbox. whois: [PHK] | phk@ref.tfs.com TRW Financial Systems, Inc. Just that: dried leaves in boiling water ?