Comment 94 for bug 357673

After trying to resolve my notification feedback problem (volume and brightness) with Johannes Hessellund solution and roundly failed in my attempt, I decided to give it a try with bwalex's solution (C program), which worked out pretty well.

After checking out the source code I noticed the program constantly read's from the processes filesystems /proc/acpi/ibm/volume, /proc/acpi/ibm/brightness and /proc/acpi/video/VID/LCD0/brightness so it can accordingly call the function that will display the pop-up notification. I tried to imagine a better way to make the calls to the functions without the constant need to read from the procfs files, this led me to an inode-based filesystem notification technology called inotify. With this tool I managed to make the calls to the functions that will display de pop-up notifications only when the procfs presented an event (File was read from, File was written to, File was opened, etc.). In this way I assume the CPU has less activity and earns processing time, either way you can correct me.

A special thanks to bwalex from which whom's code I reused to create this new version.

P.S. Hoping this program can help other people just like it did to me.