Example

hrishikesh@mylinux:~/Desktop/myos/file-system/driver/hgfs$ ls
disk_image  hgfs.c  hgfs.h  hgfs_mkfs.c  Makefile  mnt  README
hrishikesh@mylinux:~/Desktop/myos/file-system/driver/hgfs$ make
Building modules, stage 2.
MODPOST 1 modules
CC      /home/hrishikesh/Desktop/myos/file-system/driver/hgfs/hgfs.mod.o
LD [M]  /home/hrishikesh/Desktop/myos/file-system/driver/hgfs/hgfs.ko
make[1]: Leaving directory `/usr/src/linux-headers-3.13.0-48-generic'
cc     hgfs_mkfs.c   -o hgfs_mkfs
hrishikesh@mylinux:~/Desktop/myos/file-system/driver/hgfs$ ls
disk_image  hgfs.c  hgfs.h  hgfs.ko  hgfs_mkfs  hgfs_mkfs.c  hgfs.mod.c  hgfs.mod.o  hgfs.o  Makefile  mnt  modules.order  Module.symvers  README
hrishikesh@mylinux:~/Desktop/myos/file-system/driver/hgfs$ ./hgfs_mkfs 
open(): Success
hiii
hello
world
helloween
magic=100
hrishikesh@mylinux:~/Desktop/myos/file-system/driver/hgfs$ su
Password: 
root@mylinux:/home/hrishikesh/Desktop/myos/file-system/driver/hgfs# insmod hgfs.ko 
root@mylinux:/home/hrishikesh/Desktop/myos/file-system/driver/hgfs# mount -t hgfs -o loop disk_image mnt/
root@mylinux:/home/hrishikesh/Desktop/myos/file-system/driver/hgfs# cd mnt/
root@mylinux:/home/hrishikesh/Desktop/myos/file-system/driver/hgfs/mnt# ls
welcome
root@mylinux:/home/hrishikesh/Desktop/myos/file-system/driver/hgfs/mnt# cat welcome 
Coding is not only duty it's beauty too