title: compiling raspbian wheezy usb driver ch341.c to ch341.ko
body: <p>I am supposed to compile /usb/serial/ch341.c file to ch341.ko.
  I am using rs485 module which is not working. I found on some forums that other people also facing this problem because drivers come with old device id in ch341.ko file and device comes with new device id - </p>
  
  <p><a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82078234d4023c61b9d88e8be5e795423d17538e" rel="nofollow">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82078234d4023c61b9d88e8be5e795423d17538e</a></p>
  
  <p>I need to add new device id to ch341.c file which is alredy there in -</p>
  
  <p><a href="http://lxr.linux.no/linux/drivers/usb/serial/ch341.c" rel="nofollow">http://lxr.linux.no/linux/drivers/usb/serial/ch341.c</a></p>
  
  <p>Now i need to compile this file to ch341.ko for raspbian wheezy to work in my raspberry pi.</p>
  
  <p>Any help will be appreciated.</p>