Hello USB mailing list, There are all-in-one liquid coolers for your CPU (like the corsair h100i), these are populair among gamers and high-end desktop enthusiasts for cooling their CPU. Under windows these have proprietary software that control the fan speed, pump speed and most importantly (for gamers) the RGB led controls. Under linux there is software that manages to control these devices by talking to the device via USB. But this doesn't allow for the fans to be controlled via generic fan control under linux. As a hobby project I started to implement some of the features from one of these user-space drivers as a kernel module. Some features would have to be device specific like RGB controls, but fan and pump speed could be controlled just like system fans. I was wondering if there would be any interest in having a driver for these all-in-one usb controlled coolers in the linux kernel itself? Thanks Jaap Aarts