Qualcomm Reveals Embedded USB Debug Interface in Snapdragon Devices
By
denysvitali
Baker's choice. Dense with flavour, light on filler.
Summary
Qualcomm has quietly released the source code for interacting with EUD, a debug interface embedded in Qualcomm SoCs since around 2018, providing debugging capabilities for CPUs and Hexagon co-processor/DSPs.
Key quotes
· 3 pulledThis is perhaps one of the most exciting things they’ve done lately - especially if you spend a lot of time debugging the kernel or U-Boot - let’s talk about it.
EUD stands for Embedded USB Debug: essentially, this is a debug interface built right into almost every Qualcomm SoC since ~2018.
Internally it hooks deep into the SoC, providing debug facilities for not just the CPUs but also the myriad of Hexagon co-processor/DSPs.
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