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UltraPort Serial Adaptors User Guide
Installing under Linux
Page 87
Chapter 2 Installing drivers and host cards
Uninstall Patch Versions
The Perle-Serial driver version 2.0 and higher is a standalone kernel module. If previous
patches have been made to the kernel for the UltraPort card, then these patches must be
uninstalled before the new driver module can be installed.
1. Find the UltraPort patch files to the kernel. Remove the patches from the kernel source
files by entering the following commands:
cd /usr/src/linux
patch –R –p1 < <path to patches>/<patch file>
2. Recompile and install the kernel based on your specific system. For help on this
procedure please refer to your LINUX documentation.
3. The new Perle-Serial software can now be installed
Note: If more than one patch file was added, then remove them in the reverse
order that they were applied. (i.e. If the ultraport.patch-x.y.z-2.4.x was added
and then the ultraport.IO8mode-x.y.z-2.4.x was added, remove the
ultraport.IO8mode patch first.)