The SteelSeries HID driver has been used for enabling extra functionality under Linux with various SteelSeries products like for exposing battery charging controls and similar functionality. The SteelSeries Arctis 9 Wireless Headset is now seeing similar treatment with patches posted on Wednesday.
The SteelSeries Linux driver is being exposed for the Arctis 9 wireless headset to support exposing the battery information under Linux, charging state information, and other helper information.
If you happen to have the ~$199 USD SteelSeries Arctis 9 headset, the patches are currently out for review on the Linux kernel mailing list .