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Re: [hylafax-users] Trouble Setting up multiple modems onRedHat 7.0



Hi,
a little off-topic, but....
with RH7.0 Red Hat deffinitly ships a broken version of gcc. they
decided
to use the newest non-official bleeding-edge-compiler from the 
development-tree without asking the developers for problems and without 
reading the documentation and therefor got many flames from the
developer's.
If somebody needs to compile programs under RH7.0 it is a good idea
first 
to get a working version of GCC from one of the gnu-sites all aroundthe
world.
Christoph

Lee Howard schrieb:
> 
> At 06:42 PM 12/12/00 -0500, Douglas Younger wrote:
> >Hello,
> >   I am trying to set up a fax server machine with four internal PCI
> >modems. I have USR/3Com 3CP5610A modems which are not winmodems.
> 
> You are very much correct, it is not a winmodem.  AFAIK, there are three
> chipsets that control hardware-based PCI modems: USR/TI Kermit (as on the
> 3CP5610), Lucent Venus, and Topic TP560i.  I have only ever used the USR
> one as I have not been able to find any of the other two.  For an internal
> modem, and if you don't mind the nuances of USR fax firmware, the 3CP5610A
> is a very good modem.  I've used many of them.  With many new motherboards
> coming out with PCI-only options, PCI is the only means of internalizing a
> modem, although I will side with Jay's opinion about multi-modem systems
> preferring external units.  I've *never* had to reboot my single-fax
> systems, though (all internal modems), due to fax problems.
> 
> > I tried at
> >first to just get one modem set up, and using the standard kernel supplied
> >with RH7.0 (2.2.16 & patches), I was having no luck at all. I also tried to
> >compile 2.2.17 (which is a feat in and of itself with RedHat shipping a
> >beta gcc that won't compile kernels), and was still unable to access the
> >modem.  So, I got the 2.4.0-test12 which is the latest beta kernel (the
> >modem box says you need 2.3.x or better, which is funny, because 2.2.x is
> >the current "stable" revision). Anyway, I finally got a modem setup &
> >communicating with minicom. So, I put in the other 3 to see if I could
> >configure them. Well no luck. I seem to get a whole lot of resource
> >conflicts in the boot sequence. Looking at /proc/pci it only listed 2 of
> >the modems, And /etc/sysconfig/hwconf (from kudzu) lists 3 ?!? I tried
> >dropping to only 2 modems and I still get conflicts. With more than 1
> >modem, I can't access any of them.
> 
> These modems *do not* require kernel 2.3.x or greater.  I've run them with
> most of the 2.2.x flavours and have yet to use any 2.3.x or 2.4.x kernel.
> RedHat does a lot of interesting things with kudzu and isapnp during boot,
> and I'm not sure what they've done in 7.0 to make PCI modems work in a
> plug-n-play fashion, but it's not doing anything more than using kudzu,
> isapnp, and setserial.  I like RedHat, but the two aspects of the
> distribution that I dislike most are linuxconf and kudzu.  I've had more
> trouble because of those two things making unseen and unasked-for changes
> on their own...  Anyway, the essence of setting up a hardware PCI modem is
> setserial.  For example, in /etc/rc.d/rc.sysinit I have the following line
> at the top:
> 
> /bin/setserial /dev/ttyS2 uart 16550A port 0xb800 irq 9
> 
> read the setserial manpage for better info on how do do this.  You need to
> make sure, though, that the setserial command is run *before* the serial
> port is accessed by the HylaFAX daemon (so rc.local comes too late).
> 
> As for your kernel compilation issues with gcc... I believe that the
> official verdict is that the bugs are in the kernel source and not in the
> compiler.  Apparently gcc is significantly more stringent about syntax and
> code structure than kgcc or egcs are.  But yes, it is beta, yet it compiles
> HylaFAX source just dandy.
> 
> As for not having enough manageable IRQs to accomplish your desires, well,
> you and your motherboard will need to argue about that.  Don't expect any
> sympathy from Dell, though.
> 
> If you dont have any ISA slots, and if you are interested in using external
> modems, you may be interested in some multi-port PCI I/O cards like the one
> at:
> 
> http://www.siig.com/io/pci_serial_8000_plus.html
> 
> I installed one of these the other day in a Windows system, and it went
> very well.  It doesn't say anything about Linux compatiblity, but it does
> say that they are DOS compatible, so I suppose that is a good sign for
> Linux-use, but I didn't have the time to test it on a Linux system.  I
> still imagine that a hefty use of setserial would be needed with such a
> device.
> 
> Lee Howard.
> 
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