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Date: Fri, 18 Apr 2008 17:04:10 +0200
From: Per olof Ljungmark <peo@intersonic.se>
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To: Mel <fbsd.questions@rachie.is-a-geek.net>
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Cc: freebsd-questions@freebsd.org
Subject: Re: usb serial line speed limits
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Mel wrote:
> On Friday 18 April 2008 11:50:46 Per olof Ljungmark wrote:
> 
>> 'B1228800' undeclared (first use in this function)
>> /usr/src/sys/modules/ubsa/../../dev/usb/ubsa.c:534: error: (Each
>> undeclared identifier is reported only once
>> /usr/src/sys/modules/ubsa/../../dev/usb/ubsa.c:534: error: for each
>> function it appears in.)
>> *** Error code 1
>>
>> Where can I dig out more info on how to proceed? Unfortunately my
>> understanding of C and the rest is rather limited...
> 
> 
> /usr/src/sys/sys/termios.h defines the baud rates. Next one up from 115200 is 
> B230400. Max is B921600.

Well, I recompiled with B1228800 defined in termios.h but when i start 
ppp i get a complaint that the speed does not exist so it seems to be 
more complicated than that.

Furthermore, testing ftp with XP I get about 2mbit/second downstream, 
same ftp server with FreeBSD it's about 240kbit/s with serial speed 921600.

Anyone on the list who managed to crank the speed up? Hardware is 
ThinkPad T42 with a Huawei E220 modem and 7-STABLE.

--per