毕业设计需要用到1托8的MOXA CP-168U卡做一个交换机管理程序,
在搭环境的过程遇到了这样那样的问题,
系统的问题就不说了,
这里主要讲在Ubuntu8.04下安装CP-168U驱动的问题。
在MOXA官方网站下载到最新的CP-168U驱动,
按照官方的安装指导进行安装:
安装向导 写道
用root帐户(sudo就可以了)
$ sudo make clean
$ sudo make install
$ cd /mxser/driver
$ sudo ./msmknod (生成设备文件,一直回车就行)
$ sudo modprobe mxser (加载mxser驱动)
$ cd /mxser/utility/diag
$ ./msdiag (查看设备运行状态,这里没有异常,如果没有运行"sudo ./msmknod",就会出现“Please run msmknod and load driver first or there are no Card in the system.“提示)
这样一路做下来,没有出现错误,
可是在使用minicom连接/dev/ttyM0 时,死活不能连接上!!!!
于是,卸载了重装N次,
依然不行,前后折腾了2天,
终于在google上搜索到了官方的答案:
它这样 写道
[Description]
Some of the latest Linux kernels have Moxa’s multiport serial board (MSB) drivers built-in. Therefore, after installing a Moxa PCI MSB on your PC, the built-in module will load automatically. You may see the mxser_new module with the lsmod command but cannot get access to its serial ports. If you would like to install the Moxa-provided drivers instead of using the built-in one, you may see that mxser and mxser_new modules exist at the same time after installation if you did not properly remove the built-in driver first. We need to remove the built-in driver before installing the Moxa-provided driver in order to let the Moxa driver work correctly with the Moxa SmartIO PCI serial board.
[Solution]
Please use the following procedure to remove the existing module and driver:
1. #rmmod mxser_new
2. #rm –f /lib/modules/2.6.xx-xx/kernel/drivers/char/mxser_new.ko
After uninstalling the built-in driver, we need to install the Moxa-provided driver:
1. In the directory mxser where you unzip our driver -> #make clean; make install
2. Load module -> #modprobe mxser
3. Check module -> #lsmod | grep mxser
4.
地址在:http://www.moxa.com/support/faq/faq_detail.aspx?id=622
意思就是系统自带的mxser_new导致官方的驱动不能正常工作,
需要卸载掉系统自带的驱动……
按照上面的操作卸载掉mxser_new之后,重新安装官方驱动,
果然,使用minicom可以连接上/dev/ttyM0了!
弄这个弄得人都憔悴了……人生在于折腾啊。