The Linux driver for VXC multi-serial Cards.
v 0.11.5  14 Mar 2022 by Winson Chen
  Give support to Linux Kernel 5.16.0

v 0.11.4  9 Apr 2020 by Golden Wang
  Give support to Linux Kernel 5.x.x

v 0.11.3  2 Jul 2019 by Golden Wang
   To fix the driver for VXC-144U in Debian.
   Give support to Linux Kernel 4.15.0

v 0.11.2  9 Dec 2016 by Winson Chen
   Give support to Linux Kernel 4.8.x

v 0.11.1 23 Dec 2014 by Winson Chen
    Give support to Linux Kernel 3.16.0

v 0.11.0  1 Jan 2014 by Winson Chen
    Give support to Linux Kernel 3.12.0

v 0.10.0  9 Jan 2013 by Golden Wang
    Give support to VXC-182iAU.
    Give support to Linux Kernel 3.x.x.

v 0.9.1  19 Jun 2012 by Golden Wang
    Give support to VXC-142iU, VXC-142AU and VXC-142iAU.

v 0.9.0  24 May 2011 by Golden Wang
    Give support to VXC Card(Max 16) and Port(Max 128).

v 0.8.7  5 Mar 2010 by Golden Wang
    Give support to kernel 2.6.32.
    Give support to the VXC-112AU Card.
    Give support to the Lanner OEM UART Card.

v 0.8.6  3 Jul 2009 by Golden Wang
    Give support to kernel 2.6.28.
    fix bug in function "ixcom_fini"(forgot to add "put_tty_driver(ixcom_driver);")

v 0.8.5  2 Jul 2009 by Golden Wang
    fix ixcom.inst and ixcom.remove for Ubuntu system.

v 0.8.4  29 Jan 2008 by Golden Wang
    Give support to linux kernel 2.6.24.
    To add ixcom_ubuntu.inst and ixcom_ubuntu.remove for distribution Ubuntu.

v 0.8.3  21 Aug 2007 by Golden Wang
    To add VXC-142i subvendor ID(0x0061), subdevice ID(0x0006).

v 0.8.2  29 Jan 2008 by Golden Wang
    To add "package" item in Makefile for building Omega package.

v 0.8.1  21 Aug 2007 by Golden Wang
    Give support to the VXC-114U and VXC-144U modules

v 0.8.0  3 May 2007 by Golden Wang
    Give support to linux kernel 2.6.x

v 0.7.0  3 May 2005 by Moki Matsushima
    Give support to the VXC-142i and VXC-112A modules.	

    Give support to linux kernel 2.4.x

v 0.0.5 01 JUL 2004 by Moki Matsushima
    Give supports to the VXC-142 and VXC-182i modules.

    Device file (one card one file.)

    Dynamic device allocation.

    Dynamic major number.

    One major number for multiple devices.
