Ubuntu

How do i find out to which serial port is my aztech um3100 56k usb modem connected to

Asked by chiao woei

Can some1 pls help. Thank you very much in advance. BTW, i m using ubuntu 7.10 kernel 2.6.22-14-generic gnome 2.20.1 and my usb modem is aztech um3100 usb modem ( dial-up )

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marcobra (Marco Braida) (marcobra) said : 		#1

Please try:

/dev/ttyUSB0
/dev/ttyUSB1
...

Hope this helps

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refraction (a-16bit-sysop) said : 		#2

I have an aztech um3100 and it is /dev/ttyACM0 for me.

You need to install the kernel sources and recompile and install the modules after you have changed it.

To get the kernel to recognise it I had to add the lines to:
/usr/src/linux/drivers/usb/class/cdc-acm.c

{ USB_DEVICE(0x0572, 0x1328), /* Aztech UM3100 Modem */
        .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
        },

around line 1224

it is in the "usb_device_id acm_ids[] = {" structure

after adding it I have successfully sent faxes with it and got the fax tone when ringing it with hylafax running

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