Re: Installing ppp/pppd in arm-linux

[Nathan M <ngmlinux@xxxxxxxxx>]

(Ralph I accidently sent you an empty reply before this message, sorry
about that, trackpad problem)

> > Sorry, I just realized one more thing:
> >
> > I'm concerned the older ppp/pppd version that I am now using, 2.3.10-3
> > may only be 2.4.xx friendly.  If you notice this line from the error
> > message I mentioned:
> > "cardmgr[465]: module /lib/modules/2.6.7-armcore/pcmcia/serial_cs.o
> > not available"
> 
> Actually the problem is modprobe being too old.  The 2.4 modprobe does
> not know about 2.6 .ko format.  Cardmanager and pppd are not responsible
> for loading kernel modules.

In terms of modprobe, it is best to assume I don't have it (as it is
not functional), all module insertions are done through insmod
manually on the ARMcore / CM-X255.  I am running a 2.6.xx kernel so
i'd be able to load serial_cs.ko (assuming I can find and compile it),
however the problem remains that cardmgr would still be looking for a
.o module.  I am considering reflashing my entire board with a 2.4.xx
kernel instead of the 2.6.7 kernel that I currently have installed. 
This way I could insert the serial_cs.o module, the exact module that
ppp is looking for.  I think this is looking to be the path of least
resistance from here (although time consuming.)

>Type "make menuconfig" and drill down to PCMCIA area, enable it there,
>then rebuild and reinstall the kernel modules.  Where did you get your
>kernel from?

Reinstalling the linux image and kernel 2.4.xx should give me this
opportunity to ensure full PCMCIA support is included (I'm hoping to
see something relating to serial_cs in menuconfig).  My kernel came
from ftp://ftp.kernel.org/pub/linux/v2.6/

>Is your serial port really on a PCMCIA card?.

I don't have a physical RS-232 connector on the card, the card is a
PCMCIA modem with an internal serial port (or UART).  If I were to
open the card up you'd see a serial modem chipset and a PCMCIA to
serial converter chip.  Thus Linux would recognize the modem as a
serial port with a modem connected as opposed to just a modem on the
PCMCIA bus.  I'm 99% sure this is the case as I've designed similar
hardware.

-Nathan

-------------------------------------------------------------------
List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm
FAQ:        http://www.arm.linux.org.uk/mailinglists/faq.php
Etiquette:  http://www.arm.linux.org.uk/mailinglists/etiquette.php