I am updating a makefile for a kernel module for a proprietary DIO card. Everything works well and I can talk to my device fine as root. I can create a udev rule to give group privileges and again works great as long as I am a member of said group.

I would like to have the makefile create the udev rule when "make install" is run by a normal user. How do I do this? Right now I have it generating the udev rule by "sudo echo "rule" >> /tmp/test.rule" and then "sudo cp test.rule >> /etc/udev/rules.d/". This asks for the root password, but does create the rule.(It would not let me create the file directly to /udev/rules.d/...permission denied even when the root password was given.

Sorry to be long winded, just wanted to give as much info as possible.

What you cannot do without make you cannot do with make either.

Maybe use the make command to compile, but to be safe, run "sudo make all' IF 'all:' is a target in the file; otherwise run 'sudo make install'

Run a ./configure that allows you to interactively set up the temp rulefile. Use 'sudo make install' to actually put that into the udev ruleset. Best advice:

Use a combo of awk, grep, sed (the gmakefiles use these; I think the kernel makefiles do as well, as to other makefiles)

@PenGUiN_6_1, I want the normal user to able to run make with out having to enter the root password. Is there an equivalent to something along the lines of SETUID that can be used in a makefile?

(I'll write it very slowly this time, to make it easier to understand):
What you cannot do without make you cannot do with make either.

Should you have doubts, check if file /usr/bin/make has the setuid bit

@NevemTeve@PenGUiN_6_1 - Thanks for the help. I'll close this thread.