On Sunday 14 November 2004 08:29pm, Jed S. Baer wrote:
(...snip...)
> In RH8, kernel 2.4.18-14, I had been successfully using a USR Sportster
> V90 modem, connected via a Belkin F5U103 USB Serial adapter, using the
> usb-uhci module. The only glitch is that after hanging up, it later takes
> 2 tries to get connected again. This is of no concern to me, although if
> anyone wants for me to try to gather some info regarding it, I'm happy to
> make the attempt.
>
> In FC3, kernel 2.6.9-1, this setup no longer functions. I have use Minicom
> to get a look at what's happening. I can dial the modem, and get a CONNECT
> message back from it. Once the connect string has been sent, no further
> comm is possible. Normally, after receiving the connect string, a return
> character will result in a login prompt from my ISP. No amount of banging
> on the keyboard has had any effect. I cannot tell, at this point, whether
> that's because nothing is going upstream, or nothing is coming back, nor
> where the I/O is being stopped.
(...snip...)
Hi Jed,
That's quite a jump in kernel versions. I suspect there have been several
changes to the module involved. Maybe you should "binary-search" down to the
first kernel that breaks things.
By the way, what module is getting loaded to support the Belkin F5U103
adapter? It should be the 'belkin_sa' module, per the source code. Your post
caught my eye because I occasionally (very successfully) use a Belkin F5U109
RS232/USB adapter in a similar manner (i.e. for modem use, but under kernel
2.4.22, Slackware 9.1) but it uses a different kernel module ('mct_u232'), so
unfortunately, I cannot really comment any further on your specific problem.
Since I have 2.4.22 and 2.6.1 source code hanging around on this machine, I
did a quick 'diff' on the 'belkin_sa.c' file. There are several changes just
between those 2 kernel releases, so I think my "binary search" advice
applies, unless someone else more familiar with that module speaks up first.
In fact, this problem might get better replies over on the 'Linux-USB-Devel'
mailing list.
Bill Marr
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