From a54898325577100258c859bc2aa8a12663204a7e Mon Sep 17 00:00:00 2001
From: Mikkeli <mikkeli@novoyuuparosk.org>
Date: Tue, 4 Aug 2026 16:21:57 +0800
Subject: [PATCH] Add PEAK PCAN-USB entry to BOM

---
 docs/BOM.md | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/docs/BOM.md b/docs/BOM.md
index 1afadcf..dc35b6a 100644
--- a/docs/BOM.md
+++ b/docs/BOM.md
@@ -3,4 +3,20 @@ type: default
 ---
 # Bill of Materials
 
-> Placeholder — to be filled as components are selected.
+## PEAK-System PCAN-USB
+
+| Field | Value |
+|-------|-------|
+| **Manufacturer** | PEAK-System Technik GmbH |
+| **Model** | PCAN-USB |
+| **USB ID** | `0c72:000c` |
+| **Purpose** | USB-to-CAN adapter for reading car CAN bus traffic |
+| **Interface** | SocketCAN netdev (`can1`) |
+| **Default bitrate** | 500 kbps |
+| **Driver** | PEAK proprietary driver 9.2.0 (netdev build) — out-of-tree module, must be rebuilt after kernel updates |
+
+### Notes
+
+- The mainline kernel driver `peak_usb` is not compiled into the NVIDIA Tegra kernel (JetPack r36.4), so PEAK's proprietary driver is required.
+- Must be built with `NET=NETDEV_SUPPORT` for standard SocketCAN tools (`candump`, `ip link`, etc.).
+- The module lives at `/lib/modules/$(uname -r)/misc/pcan.ko` and is loaded via `modprobe pcan`.