| gclib 307 Communications API for Galil controllers and PLCs |

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redhat.md
1 # Red Hat & CentOS Linux {#redhat}
2
3 ##Tested versions
4
5 See the \link installation \endlink page for supported versions.
6
7 ##Installation
8 On Red Hat, gclib is distributed in an RPM repository. The following steps can be performed to install gclib.
9
10 ### Download Galil's repository information
11
12 This step installs Galil's RPM repositories and only needs to be done once.
13
14 \attention
15 * **Red Hat 7 and CentOS 7**
16 * Point a browser at http://www.galil.com/sw/pub/rhel/7/galilrpm-2-1.noarch.rpm and install the rpm.
17
18 * **Red Hat 6 and CentOS 6**
19 * Point a browser at http://www.galil.com/sw/pub/rhel/6/galilrpm-2-1.noarch.rpm and install the rpm.
20
21 <!--- $ sudo wget http://www.galil.com/sw/pub/rhel/galil.repo -O /etc/yum.repos.d/galil.repo -->
22
23 ### Install Package
24 Install gclib package, approve "Installed size" and "Importing GPG key", if prompted.
25
26 $ sudo yum install gclib
27
28 ### Uninstall Package
29 To uninstall gclib.
30
31 $ sudo yum remove gclib
32
33 ##Installed files
34 * The gclib shared object files
35 * /usr/lib/libgclibo.so
36 * /usr/lib/libgclib.so
37 * The gclib header files
38 * /usr/include/gclib_errors.h
39 * /usr/include/gclibo.h
40 * /usr/include/gclib.h
41 * /usr/include/gclib_record.h
42 * gclib documentation tarball
43 * /usr/share/doc/gclib/gclib_129_doc.tar.gz
44 * Example source tarball
45 * /usr/share/doc/gclib/src/gclib_129_examples.tar.gz
46 * Source files to modify/rebuild libgclibo.so
47 * /usr/share/doc/gclib/src/gclibo_129_src.tar.gz
48 * GalilTools Communication Library (gcl) wrapper
49 * /usr/share/doc/gclib/src/gclib_129_gcl.tar.gz
50 * PCI driver files
51 * /usr/share/doc/gclib/src/gclib_129_pci.tar.gz
52
53 ##Serial Ports and USB
54 If access to the serial ports or USB (e.g. DMC-4103) is desired through gclib, the following will provide steps to join the correct access group. If using USB, be sure the controller is powered and the usb is plugged in before beginning.
55
56 ###Determine group with access
57
58 $ ls -l /dev/ttyUSB* /dev/ttyS*
59 crw-rw----. 1 root dialout 4, 64 Mar 3 16:39 /dev/ttyS0
60 crw-rw----. 1 root dialout 4, 65 Mar 3 16:39 /dev/ttyS1
61 crw-rw----. 1 root dialout 4, 66 Mar 3 16:39 /dev/ttyS2
62 crw-rw----. 1 root dialout 4, 67 Mar 3 16:39 /dev/ttyS3
63 crw-rw----. 1 root dialout 188, 0 Mar 6 11:08 /dev/ttyUSB0
64
65 In the above listing, **dialout** is the group that needs to be joined. **uucp** is another common group that may be listed.
66
67 ###Add the desired *username* to the group.
68
69 $ sudo gpasswd -a username dialout
70 [sudo] password for username:
71 Adding user username to group dialout
72
73 Log out and back in for change to take effect.
74
75 $ groups
76 username wheel dialout
77
78 gclib can now connect to serial and usb devices from user *username*.
79
80 ##PCI Controllers
81 If using a Galil PCI controller, the PCI driver must be installed.
82
83 ###Install prerequisites
84
85 $ sudo yum install kernel-devel-$(uname -r)
86 $ sudo yum install kernel-headers-$(uname -r)
87 $ sudo yum install gcc
88
89 ###Extract source and build driver
90
91 $ tar -xf /usr/share/doc/gclib/src/gclib_202_pci.tar.gz
92 $ make
93
94 ###Copy module and add to kernel
95
96 $ sudo cp galilpci.ko /lib/modules/$(uname -r)
97 $ sudo depmod
98 $ sudo modprobe galilpci
99
100 ###Add galil group for access to PCI
101
102 $ sudo groupadd -f -K GID_MIN=100 -K GID_MAX=499 galil
103 $ sudo cp 90-galilpci.rules /etc/udev/rules.d/
104 $ sudo udevadm control --reload-rules
105 $ sudo udevadm trigger
106 $ sudo usermod -a -G galil username #exchange "username" with actual user's name
107
108 Logout and back in. The PCI hardware is now available for access.
109
110 $ ls -l /dev/galil*
111 crw-rw---- 1 root galil 10, 56 Jun 9 11:07 /dev/galilpci0
112 $ echo -e "\x12\x16\r" > /dev/galilpci0
113 $ cat /dev/galilpci0
114 DMC1846 Rev 1.1a
115 :
116
117 ##Documentation
118 The documentation is left as a tarball to minimize disk usage. The latest release version of the user manual is available at the following link.
119 * http://www.galil.com/sw/pub/all/doc/gclib/html/
120
121 ###Offline html
122 The following allows viewing of the html docs from the installation.
123
124 $ tar -xzf /usr/share/doc/gclib/gclib_132_doc.tar.gz html
125 $ firefox html/index.html
126
127 ###Offline pdf
128 There may be a pdf shipped in the package. The following allows viewing of the pdf docs from the installation.
129
130 $ tar -xzf /usr/share/doc/gclib/gclib_132_doc.tar.gz gclib_132.pdf
131 $ evince gclib_132.pdf
132
133