https://arstechnica.com/gadgets/2021/03/the-fairphone-2-hits-five-years-of-updates-with-some-help-from-lineageos/ https://arstechnica.com/gadgets/2021/03/the-fa

https://arstechnica.com/gadgets/2021/03/the-fairphone-2-hits-five-years-of-updates-with-some-help-from-lineageos/ https://arstechnica.com/gadgets/2021/03/the-fairphone-2-hits... Basically Qualcomm only releases proprietary Linux drivers for their chips, provided as a precompiled binary blob, and they only offer ~2 years of support before dropping them all together. Because the Linux kernel does not have a stable binary interface for driver modules, getting an old driver to work with a new version of the kernel can become a hacky nightmare.