I've a Popular P300U Egprs Modem. I can't install this on my UBUNTU 9.04 Desktop Version. My modem company doesn't give any driver support on ubuntu.

In Windows XP its install USB to UART Bridge Controllers on Com Port 3. Its Silicon Lab driver. It also install Virtual Serial Port.

In terminal window if i command "lsusb" then it show a device connected which name is "Cygnal". It also shows its vendor & product id.

# lsusb

Bus 005 Device 004: ID 10c4:ea60 Cygnal Integrated Products, Inc.

Can anyone please tell me how to install & use this modem?

You may not have to do anything. Check the /dev directory. Since you said the modem has the USB to Serial interface built in, it may show up as something like /dev/ttyUSB2 (they usually start at ttyUSB0, equal to COM1, etc.) If you plug the thing in and see that device, try setting up your PPP dialer (like KPPP), to use that device.

Thanks for your help... I'm newbie in LINUX.... can you please tell me the procedure to setup this modem in bit details?

It'll be really helpful to me.

Ok...kinda gave you details, but you haven't said what you've done.

As I said, look in the /dev directory for a ttyUSBxx device. Since you say your modem is hard-set to come up as COM3 under Windows, it'll probably be /dev/ttyUSB2. With the modem unplugged, look in /dev for those files ("ls /dev/ttyUS*"). Plug in the modem, and look again. If you see it, run your dialer config, and use that device, instead of /dev/modem.

You don't say if you're using KDE, Gnome, or some other desktop, so can't say how to set up the dialer.

I tried in /dev

# ls dev/ttyUSB0

/dev/ttyUSB0

# ls dev/ttyUSB1

ls : cannot access /dev/ttyUSB1 : No such file or directory.

# ls dev/ttyUSB2

ls : cannot access /dev/ttyUSB2 : No such file or directory.

If I remove or plug in my modem only 1st one changed, that's mean it's on dev/ttyUSB0

I tried this command -

# lsusb

BUS 001 Device 006 : ID 10c4:ea60 Cygnal Integrated Procudts, Inc. CP210x Composite Device.

# sudo modprobe usbserial vendor=0x10c4 product=0xea60

# wvdialconf create
Editing `create'.

Scanning your serial ports for a modem.

Modem Port Scan<*1>Scaning ttyUSB0 first, /dev/modem is a link to it.
WvModem<*1>: Cannot set information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- ??
ttyUSB0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Modem Port Scan<*1>: S1 S2 S3 S4 S5 S6 S7

Sorry, no modem was detected! Is it in use by another program?
Did you configure it properly with setserial?


I installed OPENSUSE 11.1 with KDE 4 Desktop. My modem is connected through usb port. In windows it needs to install virtual serial port & USB to UART Port SILAB driver. It's a EGPRS modem.

Here is my modem manual - http://www.popular.net.cn/uploadfile..._UGD_draft.pdf

Sorry for my novice reply... Can you tell me now what to do?