RH doesn't detect my USB Modem
I've connected a Zyxel Omni 56K Plus USB Modem to a 64Bit Box running Redhat Enterprise Linux 3. However, it doesn't get detected.
Here's the details Code:
# wvdialconf /etc/wvdial.conf Code:
# setserial /dev/ttyUSB0 Code:
# cat /proc/bus/usb/devices The first time it reads: Bus number: 3 Level in topology for this bus: 1 Parent deviceNumber: 1 Connector/Port on Parent for this device: 0 Count of devices at this level: 1 Device Number: 2 Device Speed in Mbps: 12 MaxChildren: 0 The second time it reads: Bus number: 3 Level in topology for this bus: 1 Parent deviceNumber: 1 Connector/Port on Parent for this device: 1 Count of devices at this level: 1 Device Number: 3 Device Speed in Mbps: 12 MaxChildren: 0 That's how far I got. But I have no idea if this can help me identify the device where it is connected, and then, have my box "see" the modem. Any help greatly appreciated. |
I don't think it has loaded a driver for the modem at all. Almost all USB modems were of one singular type, so let's hail mary load that driver:
/sbin/modprobe acm If that loads right, check: dmesg And see what stty device it got in /dev. If in doubt, post back with the output of dmesg and the error from modprobe. Cheers, Finegan |
Thanks Finegan. I got that hint about the driver yesterday and have a link ready. But before compiling a driver and all the stuff I hope your trick works.
First of all, everything you told didn't output an error message. That's already a good sign. Here's my session: Code:
# /sbin/modprobe acm Code:
# setserial /dev/tty0 |
Since it didn't work, I thought rebooting the machine would help. But instead it forgot all I told it before. How to make the changes from modprobe persistent?
Then this: http://www.zyxel.com/support/knowled...lag=1021681602 Q: Is there Linux driver for omni.net USB model? A: Sorry, so far we do not have plan to support Linux driver for omni.net USB. dammit. Ok. Then we have to buy another modem. Any suggestions for a good Linux USB-modem? It has to be an USB since there's no available serial port on the box. Thanks |
usb.c: registered new driver acm
acm.c: v0.21:USB Abstract Control Model driver for USB modems and ISDN adapters Were the only two lines to appear, it'll load no matter what, unlike most drivers that kick errors if the device isn't present. If there's a line after that about what stty got assigned then its the acm chipset... The only reason I have one is that we got them free in these Dish Network throw-aways that we gutted for parts. Modems are usually pretty regional, the USB ones I have are called "New Media v.90 USB Modem", no model number, nothing... and most of the googling I can do brings up adsl and cable modems. Dial-up is a hard world under Linux just for this reason. There isn't anything in our HCL about them and very little elsewhere, maybe if you can test them before you buy... Cheers, Finegan |
We are going a different track now. Last friday we've ordered an additional PCI-Serial card and I'm trying to install it right now.
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Serial PCI Card problems
The PCI Card we bought is the following:
EX-41092: 2S PCI Serial card RS-232 32/64-Bit with 2 x FIFO 16C950, (3.3V and 5V) There's even a step-by-step installation instruction for Linux. The spot in the installation instructions where they say that in the file /proc/pci I should find an information like "Vendor id=1409, Device id=7168" however lost me a little bit, since it didn't appear in my file. So I did the following: Code:
# lspci Code:
Bus 0, device 15, function 0: Code:
setserial /dev/ttyS2 uart 16550A port 0x2440 irq 10 baud_base 921600 spd_normal skip_test auto_irq Code:
Sorry, no modem was detected! Is it in use by another program? |
Honestly, I know very little about serial devices. I've had to use minicom exactly once in order to repair an old SAN device, and the thread title and the number of posts is going to make for fewer eyeballs on this thread. I would not consider it double posting at all if you started a whole new thread as this really is a whole new problem.
Cheers, Finegan |
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