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"However, only a minor part of the driver was released as open source; all of the video acceleration is done using a firmware coded for its proprietary GPU, whi
by throwaway81523 2y ago
"However, only a minor part of the driver was released as open source; all of the video acceleration is done using a firmware coded for its proprietary GPU, which was not open sourced. The entire SoC itself is managed by a ThreadX-based RTOS that is loaded into the VideoCore's VPU during bootup.[16]"
https://en.wikipedia.org/wiki/VideoCore#Linux_support https://en.wikipedia.org/wiki/VideoCore#Linux_support