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+How to do Embedded Linux [not] right
+Differences to PC Linux
+
+
+Differences to Linux on a PC
+In the Embedded world
+every CPU/SoC maker runs their own kernel tree
+often one kernel tree per product, based on different mainline versions
+ages-old base revisions
+a never-ending security nightmare
+no benefit from recent new features in mainline
+non-standard subsystems (e.g. different USB device or SDIO stack)
+proprietary drivers cause lock-in to old kernels
+
personal git repositories of Harald Welte. Your mileage may vary