changes

采用ark 3116芯片组的usb转rs232接口线的linux下驱动程序

- CHANGELOG: --------------------------------------

*** 0.4.2 ***
- changed bulk read callback, should now work with kernel 2.6.16

*** 0.4.1 ***
- some changes

*** 0.4.0 ***
- changed version names to 0.x.y
- added changes made by Erik (Makefile)
- removed debug=1 & added kernel parameter -> "insmod ark3116.ko debug=1" to activate debug msgs
- i guess i found the modem control status register (0x0006), ark3116_tiocmget returns some data now (UNTESTED)
- added open() function & usb urb stuff (copied from generic.c)
- changed some init stuff... i still do not know what many lines do
- added 75 & 460800 baud

*** v0.3b ***
- removed compile error when used with newer libusb (removed .owner in usb_driver struct init)

*** v0.3 ***
- added baudrates, now supports: 150,300,600,1200,1800,2400,4800,9600,19200,38400,57600,115200,230400 
  * tested (rx) ok : 150,300,1200,1800,2400,4800,9600,19200,38400,57600,115200,230400
  * not working    : 75, 460800
                   -> not working, baud=75 -> io value is 40000 (> 2^16 !) there must be a second register (prescaler etc) !!!
- tested 6N1,7N1 & 8N1 -> ok !
- fixed missing break; (CS5)

*** v0.2 ***
- added experimental data bit count, parity & stopbit selection (UNTESTED)
- some cleanup

*** v0.1 ***
- first release
- data bit count, parity & stopbit selection does not work
- ignores all termio/io calls not neccessary for normal usage
- supported baudrates: 300-115200, other can be added with minimum effort!