kernel-parrot

This kernel module has two parts.

• A character device for read messages stored in the kernel module. The module param one_shot controls whether a single or multiple messages are read.
• A sysfs entry located at /sys/devices/virtual/parrot/parrot/fifo to store a message in the module.

Testing

First build, install and check for loaded kernel module:

make 
sudo make install
make checkinstall

Then fill the kernel-fifo with messages

echo "Today is a good day to develop!" > /sys/devices/virtual/parrot/parrot/fifo

After filling the modules fifo we can read (pop) messages from the module.

cat /dev/parrots

Finally remove the module with

sudo make uninstall

Known issues

• There is a compile warning because the show param of DRIVER_ATTR is NULL. But this does not matter, since we use sysfs for writing only.
• Documentation follows doxygen format, but for kernel modules it is adviced to use kernel-doc format