Moxa NPort 5250A

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

Instructions for Version 1.18.57 Build 16081213

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

cd to location
```
cd /opt/lvisf/src/moxa/kernel2.x
```

modify the code so that it compiles properly on SL (Scientific Linux), compiles fine on CentOS 6.5

Uncomment line 742 of npreal2.c

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))

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))

Comment out line 744 of npreal2.c

Change this

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

To this

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

Edit line 109 of npreal2.c to lower the version number

Change this

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

To this

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

if the driver has been previously installed, run the unintaller first
```
sudo ./mxuninst
```
run the install script with 64 bit environment variable set
```
sudo ./mxinst m64
```
answer this NO to this question Do you want to enable secure function? [y/N] N

./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

From a Windows machine, run the Nport search program and assign IP address
```
DMYancich - assigned - 10.4.1.168 (From DHCP, then made static)
```
./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