I am writing a LKM to create a character device driver. Linux Kernel: 4.4.0-93-generic in VirtualBox, 2GB ram and SWAP is 300Kb Problem 1 If I write a C program that handles the fd in dev_write, it's all good, it reads as it should, but if I try to use head -n 1 < /dev/opsysmem it does not out...