title: USBSerial Converter not detecting as ttyUSB in Debian Linux
body: <p>I have to use trendnet tu-s9 usb to serial converter to transmit some commands via RS232. But unfortunately I couldn't see USB-Serial converter as ttyUSB under "/dev/" path. I don't understand the issue as USB detecting under usb list please see the below "lsusb" output</p>
  
  <p>*:~$ lsusb</p>
  
  <p>Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub</p>
  
  <p>Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub</p>
  
  <p>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub</p>
  
  <p>Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub</p>
  
  <p>Bus 002 Device 003: ID 0835:1601 Action Star Enterprise Co., Ltd </p>
  
  <p>Bus 002 Device 004: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port*</p>
  
  <p>When I locate USBSerial I could see USBSerial drivers installed.</p>
  
  <p>*:~$ locate usbserial</p>
  
  <p>/boot/grub/usbserial_common.mod</p>
  
  <p>/boot/grub/usbserial_ftdi.mod</p>
  
  <p>/boot/grub/usbserial_pl2303.mod</p>
  
  <p>/lib/modules/3.2.0-4-686-pae/kernel/drivers/usb/serial/usbserial.ko</p>
  
  <p>/lib/modules/3.2.0-4-rt-686-pae/kernel/drivers/usb/serial/usbserial.ko</p>
  
  <p>/usr/lib/grub/i386-pc/usbserial_common.mod</p>
  
  <p>/usr/lib/grub/i386-pc/usbserial_ftdi.mod</p>
  
  <p>/usr/lib/grub/i386-pc/usbserial_pl2303.mod*</p>
  
  <p>Though I have drivers and USB listed in usb list, I am not getting device path under /dev/ as ttyUSB. Is there any way to get it ?</p>
  
  <p>Please help me in this issue.</p>
  
  <p>Linux details which I am using:</p>
  
  <p>*:~$ lsb_release -a  </p>
  
  <p>No LSB modules are available.  </p>
  
  <p>Distributor ID: Debian   </p>
  
  <p>Description:    Debian GNU/Linux 7.8 (wheezy)</p>
  
  <p>Release:        7.8</p>
  
  <p>Codename:       wheezy*</p>
  
  <p>Many Thanks in Advance.</p>