motorola sm56 pci modem ???

ubu_roi · 12-24-2002, 05:30 AM

Has anyone a working motorola sm56 pci modem?

I dowloaded the driver (rpm) from motorla's web (they write, that the modem has benn tested under redhat 7.1; I run RedHat 7.2 with Kernel 2.4.7-10). I installed the rpm, run a script sm56setup provided by the rpm (the output of the script said, that the modem has been installed as /dev/modem. modprobe -l says that /lib/.../sm56.o is loaded.

wvdial and kppp say: "/dev/modem: no such device."

Can anyone say me how to make it work???

Thanx, Peter

iocain · 12-24-2002, 08:40 AM

What does /dev/modem actually point to? It's almost always a symlink. In other words, what is the output of 'ls -l /dev/modem'?

ubu_roi · 12-25-2002, 04:15 AM

/dev/modem points to /dev/sm56

UnTamed · 12-25-2002, 06:52 AM

Quote:

Originally posted by ubu_roi
/dev/modem points to /dev/sm56

Looks like the driver installed correctly [...so to speak], check that it created the module /lib/modules/2.4.xxx/misc/sm56.o
and see if /etc/module.conf has been edited to load the module.
...or confirm the module is loaded with lsmod
Problem is IIANM, the driver was built for kernel 2.2.x.

I read of a way to fix it with early 2.4.x kernels [...but never actually tried it myself]

Quote:

Install the kernel sources, edit /path-to-kernel-sources/mm/slab.c
like this: you have to find these lines
if (flags & ~(SLAB_DMA|SLAB_LEVEL_MASK|SLAB_NO_GROW))
BUG();
commenting them like this
/* if (flags & ~(SLAB_DMA|SLAB_LEVEL_MASK|SLAB_NO_GROW))
BUG();*/

then you recompile the kernel, install the driver and ...hope for the best.
But it may already be not enough to make it work with newer kernel still.

snmurthy · 02-02-2003, 01:04 PM

I have a similar problem. run " lsmod " and see if the module is loaded. if not use insmod and load it. if there are any compatibility issue then u will get that message. sm56 driver is a proprietary software and was compiled with gcc version 2, if the kernel that u have is compiled with gcc version 3 then it will not be compatilble.

rupak · 02-11-2003, 11:33 PM

Hi Guys,

I have a SM56 modem. Recently I upgraded (second OS) to Linux 8.0

The modem is not detected. I tried to load the module sm56 (from motorola) but it does not load saying that kernel is compiled with gcc 3.0 and module is compiled with gcc 2.0.

Is there any other driver that can get my modem to work under linux. Or someway to upgrade the motorola driver to 3.0. I have to boot Win to surf the net.

Thanks.
Rupak

mobanne · 02-28-2003, 11:33 PM

Hi
I've got the same problem....
You can try downloading the source of this driver and recompile it with the 3.0 gcc.

Mohamed

juby · 03-02-2003, 12:24 PM

THis modem wont work on redhat 7.2 or kernel 2.4.5 or higher
visit http://infologics.50megs.com/linux.htm for furhter info

bcoz this driver is not open src, so i had to exchange my modem with a pctel one hsp56