https://rfcorner.in/tags/tapocalypse/Recent content in Tapocalypse on Dhiru's NotebookHugoenTue, 23 Dec 2025 00:00:00 +0000https://rfcorner.in/posts/supporting-cmt2300a-on-linux/Tue, 23 Dec 2025 00:00:00 +0000https://rfcorner.in/posts/supporting-cmt2300a-on-linux/<h2 id="what-this-article-covers">What This Article Covers</h2> <p>This article presents a practical journey to add Linux support for the HOPERF CMT2300A Sub-GHz RF transceiver - starting from extracting register configuration tables out of vendor firmware, to building and testing a Linux driver on real hardware.</p> <p>You'll learn:</p> <ul> <li>How TP-Link's driver situation motivated this effort</li> <li>How firmware was extracted and analyzed</li> <li>How to build and load the custom driver on Raspberry Pi</li> <li>How to verify real on-air packet RX</li> </ul> <p>This is aimed at embedded Linux developers, reverse engineers, and RF hackers. It is <em>not</em> a beginner Linux kernel tutorial nor a full CMT2300A datasheet walkthrough; the focus is on practical bring-up and reproducibility.</p>