The following procedure may help find a device identifier or device file for a newly added hardware device in GNU/Linux . In the example I am connecting a USB pendrive
You can find the details from the Linux kernel log
hnlinux:~ # tail -f /var/log/messages
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May 2 01:38:24 hnlinux kernel: usb 1-7: new high speed USB device using ehci_hcd and address 8
May 2 01:38:24 hnlinux kernel: usb 1-7: new device found, idVendor=0781, idProduct=5151
May 2 01:38:24 hnlinux kernel: usb 1-7: new device strings: Mfr=1, Product=2, SerialNumber=3
May 2 01:38:24 hnlinux kernel: usb 1-7: Product: Cruzer Micro
May 2 01:38:24 hnlinux kernel: usb 1-7: Manufacturer: SanDisk Corporation
May 2 01:38:24 hnlinux kernel: usb 1-7: SerialNumber: 20052845221D9DB1625F
May 2 01:38:24 hnlinux kernel: usb 1-7: configuration #1 chosen from 1 choice
May 2 01:38:24 hnlinux kernel: scsi7 : SCSI emulation for USB Mass Storage devices
May 2 01:38:24 hnlinux kernel: usb-storage: device found at 8
May 2 01:38:24 hnlinux kernel: usb-storage: waiting for device to settle before scanning
May 2 01:38:29 hnlinux kernel: Vendor: SanDisk Model: Cruzer Micro Rev: 0.1
May 2 01:38:29 hnlinux kernel: Type: Direct-Access ANSI SCSI revision: 02
May 2 01:38:29 hnlinux kernel: SCSI device sdb: 8027712 512-byte hdwr sectors (4110 MB)
May 2 01:38:29 hnlinux kernel: sdb: Write Protect is off
May 2 01:38:29 hnlinux kernel: sdb: Mode Sense: 03 00 00 00
May 2 01:38:29 hnlinux kernel: sdb: assuming drive cache: write through
May 2 01:38:29 hnlinux kernel: SCSI device sdb: 8027712 512-byte hdwr sectors (4110 MB)
May 2 01:38:29 hnlinux kernel: sdb: Write Protect is off
May 2 01:38:29 hnlinux kernel: sdb: Mode Sense: 03 00 00 00
May 2 01:38:29 hnlinux kernel: sdb: assuming drive cache: write through
May 2 01:38:29 hnlinux kernel: sdb: sdb1
May 2 01:38:29 hnlinux kernel: sd 7:0:0:0: Attached scsi removable disk sdb
May 2 01:38:29 hnlinux kernel: sd 7:0:0:0: Attached scsi generic sg1 type 0
May 2 01:38:29 hnlinux kernel: usb-storage: device scan complete
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You can see that the device file /dev/sdb has been assigned to the device.
You can mount the device from the above information with ease
Posted under hardware
This post was written by Anoop Alias on May 1, 2008

This is what once i asked to you. How can i detect the mount point of an usb device i plugged in (in my case it was a tata indicom plug to surf )
Can i get the mount point of that particular device
say /mnt/USB0 etc ???
Yes you can find out the device file of the USB modem the same way