Date: Tue, 13 Oct 1998 10:41:06 +0100 From: Stuart Henderson <stuart@internationalschool.co.uk> To: ianc@4dcomm.com Cc: freebsd-Questions@FreeBSD.ORG Subject: driving motherboard com ports 230-921kbps: URL ref, patches for 2.2.2 and 2.1.5. Message-ID: <36232032.C709501E@internationalschool.co.uk>
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On Mon, 18 May 1998, Ian Cartwright wrote: > I am currently using my FreeBSD box as an Internet Gateway (what a relief to > be able to use my old 486 instead of dedicating a pentium with gobs of > memory to run MS Proxy or WinGate!!). I am using a USR Courier I-Modem for > my ISDN connection. My question is, are there any serial drivers out there > that support a speed of 230400 on a "standard" 16550A serial port? I can use > the default sio driver but it tops out at 115200. I think it may be causing > problems downloading large files from the internet because the com port is > running slower than the modem. > > Thank you in advance for any light you may be able to shend on this! > > Ian Cartwright > ianc@4dcomm.com I found this recently: http://www1.yk.rim.or.jp/~gigo/over115K/index_e.html --excerpt follows:-- It is not widely known, but the serial ports on motherboards and add-in cards that use the some I/O controllers will support operation at greater than 115200 bps. I checked mother boards in Akihabara electric town and local PC stores. The I/O controller chips was used with 90% or more of the newest mother boards. All they need is the proper software to enable and program these high speed modes. That is what this page provides. --snip-- It's provided in the form of patches to sio.c for 2.2.2 and 2.1.5, software is also provided for W95/98/NT and Linux. uarts reported as working with the FreeBSD version are as follows: ALI: M1543, M1543C. NS: PC87308, PC87307, PC87317, PC97307, PC97317, PC87309, PC87338, PC97338. SMC: 37M60x, 37M61x, 37B72x, 37B77x, 37B78x, 37B80x, 37N769, 37N958FR. Winbond: W83877TF, W83977A/F/ATF Win/Linux versions support a few other SMC chips as well. HTH Stuart To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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