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USBIP for redhat version 6 from source

For a linux kernel below 3.2.0-22.25

yum install kernel-devel automake autoconf gcc glib make ncurses-devel ncurses sysfsutils
yum install rpm-build redhat-rpm-config asciidoc hmaccalc perl-ExtUtils-Embed xmlto
yum install audit-libs-devel binutils-devel elfutils-devel elfutils-libelf-devel
yum install newt-devel python-devel zlib-devel

Download sysfsutils-2.1.0.tar.gz
	tar xvf sysfsutils-2.1.0.tar.gz
	cd sysfsutils-2.1.0
	./configure
	make
	make install 

#Module build	
Download the correct linux-`uname -r`.tar.bz2 from vault.centos.org
Login as a diffrent user other than root
tar xvf linux-`uname -r`.tar.bz2 -C ~/
cp /usr/src/kernels/<uname -r>/Module.symvers ~/linux-`uname -r`
cd ~/linux-`uname -r`
make oldconfig
make menuconfig
	>>Device Drivers>>Statging>USBIP ( Select M)
make prepare
make M=drivers/staging/usbip/
sudo cp drivers/staging/usbip/*.ko /lib/modules/`uname -r`/extra/
sudo modprobe vhci-hcd
sudo modprobe usbip_common_mod
sudo modprobe usbip


#Binary file build
Download http://sourceforge.net/projects/usbip/files/usbip/0.1.7/usbip-0.1.7.tar.gz/download
tar xvf usbip-0.1.7.tar.gz -C /tmp
cd /tmp/usbip-0.1.7/src/
./autogen.sh
make
ls
./configure
make
sudo make install

Ref:
	http://sourceforge.net/p/usbip/discussion/418507/thread/86706429/
	http://askubuntu.com/questions/14627/no-symbol-version-for-module-layout-when-trying-to-load-usbhid-ko
	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/900384
	http://wiki.centos.org/HowTos/I_need_the_Kernel_Source
	http://wiki.centos.org/HowTos/BuildingKernelModules
	

On CentOS 6.6 (and probably all others) you also need to:
make scripts
Before compiling the module, else you'll get a failure like:
/bin/sh: scripts/genksyms/genksyms: No such file or directory

Successful steps on CentOS Linux release 7.3.1611 (Core) 3.10.0-514.2.2.el7.x86_64 to compile the modules:

(for some people, some steps might not be needed)

The following gets you past the well-known errors such as:
1. No rule to make target `arch/x86/syscalls/syscall_32.tbl',
2. /bin/sh: scripts/genksyms/genksyms: No such file or directory
3. insmod: ERROR: could not insert module /lib/modules/3.10.0-514.2.2.el7.x86_64/extra/usbip-core.ko: Invalid module format
and
4. insmod: ERROR: could not insert module /lib/modules/3.10.0-514.2.2.el7.x86_64/extra/vhci-hcd.ko: Unknown symbol in module

Under root (or another super/sudo user):

1. Install some prerequisites (if you haven't already done so)
   sudo yum install kernel-tools kernel-tools-libs kernel-devel kernel-headers
   Note: Bear in mind you might need some additional packages described here and also we need the full kernel source as these modules fail to compile otherwise hence the error listed by number 1 in the above mentioned.

Under non-root user (I used the user builder):

2. Set a variable to make commands usage and life easier
   export OS_VER="7.3.1611"
export KERNEL_VER="3.10.0-514.2.2.el7"
export KERNEL_ARCH="x86_64"
3. Get header source RPM
   wget http://vault.centos.org/$OS_VER/updates/Source/SPackages/kernel-$KERNEL_VER.src.rpm
4. Install RPM
   rpm -i kernel-$KERNEL_VER.src.rpm
5. Make some directories required for compiling
   mkdir -p ~/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS}
6. RPM macro
   echo '%_topdir %(echo $HOME)/rpmbuild' > ~/.rpmmacros
7. Prepare to compile
   cd ~/rpmbuild/SPECS/
8. Prepare source code, needed to compile the kernel modules
   rpmbuild -bp --target=$(uname -m) kernel.spec
9. Go to kernel source tree to compile
   cd ~/rpmbuild/BUILD/kernel-$KERNEL_VER/linux-$KERNEL_VER.$KERNEL_ARCH/
   -------------------------------
   ONLY IF YOU ARE RECOMPILING OR FAILED SOMEWHERE BELOW THIS POINT GET BACK TO HERE AND DO A
   make mrproper
   -------------------------------
10. Copy module symbols versions
    cp /usr/src/kernels/$KERNEL_VER.$KERNEL_ARCH/Module.symvers .
11. Copy current config
    cp /boot/config-$KERNEL_VER.$KERNEL_ARCH .config
12. Configure everything according to what we copied
    make oldconfig
13. Pick what we want to compile (>>Device Drivers>>Statging>USBIP ( Select M))
    make menuconfig
14. Now prepare to compile for real
    make prepare
15. Make scripts
    make scripts
16. FINALLY... compile the modules (only)
    make M=drivers/staging/usbip/

Again, under root (or another super/sudo user):

17. We need those vars again
    export KERNEL_VER="3.10.0-514.2.2.el7"
export KERNEL_ARCH="x86_64"
18. Copy the modules (replace /home/builder if you need)
    sudo cp /home/builder/rpmbuild/BUILD/kernel-$KERNEL_VER/linux-$KERNEL_VER.$KERNEL_ARCH/drivers/staging/usbip/*.ko /lib/modules/$KERNEL_VER.$KERNEL_ARCH/extra/
19. Insert whatever modules you need
    sudo insmod /lib/modules/$KERNEL_VER.$KERNEL_ARCH/extra/usbip-core.ko
sudo insmod /lib/modules/$KERNEL_VER.$KERNEL_ARCH/extra/usbip-host.ko
sudo insmod /lib/modules/$KERNEL_VER.$KERNEL_ARCH/extra/vhci-hcd.ko

And there you go! You finally have working USB/IP Modules.

On CentOS 6.6 (and probably all others) you also need to:
make scripts
Before compiling the module, else you'll get a failure like:
/bin/sh: scripts/genksyms/genksyms: No such file or directory

And before "sudo modprobe vhci-hcd" you also need to
depmod -a