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Michael Tretter

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Navigating the Linux Graphics StackOpen Source Summit Europe 20222022-09-13
Stepwise recipe: allocate a pixel framebuffer (GBM/GBM object), configure display mode with modetest and KMS, and hand the buffer to the display via DRM/KMS…
Talk on
Building Open Hardware with Open SoftwareOpen Source Summit + Embedded Linux Conference + OSPOCon 20212021-09-27
Uses an open source FPGA flow (Yosys/trellis/nextpnr via litex) to synthesize Lattice ECP5 bitstreams for OrangeCrab and a larger ecp5 board and implements two…
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The Road to the Mainline ZynqMP VCU DriverFOSDEM 20212021-02-06
The Xilinx ZynqMP SoC includes a powerful H.264/H.265 Video Codec Unit (VCU) which Xilinx supports with an out-of-tree driver and user space library. The…
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The Modern Linux Graphics Stack on Embedded SystemsOpen Source Summit Europe & ELC + OpenIoT Summit Europe 20182018-10-22
Modern embedded Linux can use Wayland + Mesa + DRM to save memory bandwidth: Weston’s DRM backend uses atomic mode-setting (drm atomic commit), supports…
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Zero-Copy Video Streaming on Embedded Systems the Easy WayOpen Source Summit Europe + Embedded Linux Conference Europe 20172017-10-23
Demonstrates a practical zero-copy pipeline on an i.MX6 using i.MX6 with Etnaviv drivers, V4L2 capture and codec drivers, GStreamer and Mesa/Wayland to…
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