On Tue, 16 Nov 2004 02:24:34 -0400 Marr wrote: > On Monday 15 November 2004 04:56pm, Jed S. Baer wrote: > > Also, by using an approprate level of squinting and other > > enhancements, I have detected the "send data" LED flickering > > oh-so-faintly when I hit[RETURN] in minicom, so it appears that data > > is indeed going up to my ISP(and this is why I prefer external modems > > -- das blinkenlights are still useful). I'm beginning to think this is > > not a USB problem. But that leaves me wondering what to look at next. > > Jed, > > I was preparing a response to your earlier email when I saw this. It > seems to me that my reply won't be pertinent unless/until you determine > if this is really a USB problem or not. > > I'm guessing that your machine has no RS-232 port or you'd have tried > the simple test of eliminating the Belkin F5U103 USB/RS-232 adapter. > > Short of borrowing a plug-in RS-232 card and/or some Linux-compatible > USB modem, or trying some other distro with 2.6.9 (or above), I'm > without ideas. :^(
Well, I have 4 things needing serial ports. USB is the bane of my existence. :\ But support for legacy hardware on the part of mobo manufacturers is fast going away. My current mobo has only one serial port, and at the very least I need to have my modem and UPS connected -- it's tough, but I'm doing without the X10 control dongle :). Also, all the PCI slots are full -- there are only 3 of them, so adding a serial card or internal modem isn't possible. At this point, I don't know what to try next. It's tough to point fingers at pppd or chat, because it works fine with ttyS0. It might be that either of those programs is doing something with the tty settings that makes usbserial or belkin_sa go haywire. Maybe a line analyzer would provide some clues, except that if I could afford one of those, I'd just buy a new mobo with more capacity. I'm hesitant to put the UPS on the USB/Serial adapter, until I feel better about it being a reliable interface. The last-ditch "solution" is to buy a USB external modem. The vast majority of those are software modems. The controller modems are about twice the price. Regrettably, I need to avoid spending any money I don't have to. Basically, I have evidence, now, which conflicts as to whether this is a USB problem. But I'm at a point where I don't know what to try next. If there really is a bug somewhere in the USB toolchain, I'd like to find it, rather than just shrug and try something else. jed -- http://s88369986.onlinehome.us/freedomsight/ ... it is poor civic hygiene to install technologies that could someday facilitate a police state. -- Bruce Schneier ------------------------------------------------------- This SF.Net email is sponsored by: InterSystems CACHE FREE OODBMS DOWNLOAD - A multidimensional database that combines robust object and relational technologies, making it a perfect match for Java, C++,COM, XML, ODBC and JDBC. www.intersystems.com/match8 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
