Assuring that a device node exists
The CLP device driver provides a misc character device, /dev/clp. If your distribution does not create the device node for you, create a node.
Example
Check for an existing node:
# find /dev -name clp
If no node is found, use major number 10 and a dynamic minor number to create one. Issue the
following command to find the minor number:
# grep clp /proc/misc 58 clp
The minor number of the example is 58. Issue an mknod command to create the
node:
# mknod /dev/clp c 10 58
Applications can issue an ioctl on this device to obtain information about the available CPI functions.