Moxa NPort 5250A

Two port RS-232/422/485 serial device servers

Received this version via email from support.us@moxa.com Joe delaCruz 2016.10.24 8:53PM

Latest version is in the repository now original under tars and the uncompressed version under src/moxa

1. cd to location

   cd /opt/lvisf/src/moxa/kernel2.x

2. modify the code so that it compiles properly on SL (Scientific Linux), compiles fine on CentOS 6.5
   1. Uncomment line 742 of npreal2.c
      1. Change this

         #if (LINUX_VERSION_CODE >= VERSION_CODE(2,4,0))
                         //init_MUTEX(&tty_node->tx_lock);
         #if (LINUX_VERSION_CODE < VERSION_CODE(2,6,39))

      2. To this

         #if (LINUX_VERSION_CODE >= VERSION_CODE(2,4,0))
                         init_MUTEX(&tty_node->tx_lock);
         #if (LINUX_VERSION_CODE < VERSION_CODE(2,6,39))

   2. Comment out line 744 of npreal2.c
      1. Change this

         #if (LINUX_VERSION_CODE < VERSION_CODE(2,6,39))
                         tty_node->tx_lock = SPIN_LOCK_UNLOCKED;
         #else

      2. To this

         #if (LINUX_VERSION_CODE < VERSION_CODE(2,6,39))
                         // tty_node->tx_lock = SPIN_LOCK_UNLOCKED;
         #else

   3. Edit line 109 of npreal2.c to lower the version number
      1. Change this

         #if (LINUX_VERSION_CODE > VERSION_CODE(2,6,36))

      2. To this

         #if (LINUX_VERSION_CODE > VERSION_CODE(2,4,0))

3. if the driver has been previously installed, run the unintaller first

   sudo ./mxuninst

4. run the install script with 64 bit environment variable set

   sudo ./mxinst m64

5. answer this NO to this question Do you want to enable secure function? [y/N] N
6. ./mxinst fails

   The device driver does not build correctly on our SL system, need to modify npreal2.c
   Uncomment line 742
   Comment line 744
   Line 109 - change (2,6,36) to (2,4,0)
   Then:
   sudo ./mxinst

7. From a Windows machine, run the Nport search program and assign IP address

   DMYancich - assigned - 10.4.1.168 (From DHCP, then made static)

8. ./mxinst will install config program in /usr/lib/npreal2, cd to /usr/lib/npreal2

   sudo ./mxaddsvr 10.4.1.198 2 # (ip from below, and 2 serial ports)

Found these two devices when testing out the CentOS build