LCD Brightness Control on MSI S270 Laptops
source link: https://0pointer.net/blog/projects/s270ctrl.html
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
In response to mjg59's rant about controlling the LCD brightness on laptops, I invested some time to reverse engineer the Windows driver of my MSI S270 laptop which implements changing LCD brightness. It requires some ugly fiddling with registers of the "embedded controller" on ports 0x62 and 0x66. The result of my work is s270ctrl, a small userspace utility. I'm planning to turn this into a proper kernel module soon.
Recommend
About Joyk
Aggregate valuable and interesting links.
Joyk means Joy of geeK