From 5a3b8b943ecf1a3a63e15e83e6afe4a8053f5722 Mon Sep 17 00:00:00 2001
From: Thomas Dettbarn <dettus@dettus.net>
Date: Thu, 23 Apr 2026 09:47:13 +0200
Subject: [PATCH] OpenBSD-Patch: Added the #include <sys/socket.h> in
 xvc_server.cpp to allow for compilation. Added a section to the README.md.

---
 README.md          | 35 +++++++++++++++++++++++++++++++++++
 src/xvc_server.cpp |  1 +
 2 files changed, 36 insertions(+)

diff --git a/README.md b/README.md
index cc2d2c6..0e84b31 100644
--- a/README.md
+++ b/README.md
@@ -156,6 +156,41 @@ OPENFPGALOADER_SOJ_DIR=/somewhere openFPGALoader xxxx
 `OPENFPGALOADER_SOJ_DIR` must point to directory containing **spiOverJtag**
 bitstreams.
 
+## Disabling uftdi on OpenBSD
+
+Certain evaluation boards can cause the following error when running openFPGAloader on OpenBSD:
+
+```
+fail to read data usb bulk read failed
+JTAG init failed with: low level FTDI init failed
+```
+
+This issue is most likely caused by the uftdi module, trying to access the device. To disable it,
+the following commands can be used:
+
+```bash
+# doas config -e -f -o /bsd.nouftdi /bsd
+OpenBSD 7.8 (GENERIC) #54: Sun Oct 12 12:45:58 MDT 2025
+    deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
+Enter 'help' for information
+ukc> disable uftdi*
+356 uftdi* disabled
+ukc> disable uftdi0
+ukc> disable uftdi1
+ukc> quit
+Saving modified kernel.
+# reboot
+```
+
+At the boot prompt, typing in
+
+```
+boot> boot /bsd.nouftdi
+```
+
+will boot the new kernel with the disabled module.
+
+
 ## Sponsors/Partners
 
 ![Sponsors](https://github.com/user-attachments/assets/cb4efce1-ed0c-461c-bd05-9caeb440870d)
diff --git a/src/xvc_server.cpp b/src/xvc_server.cpp
index f710a79..bd660ee 100644
--- a/src/xvc_server.cpp
+++ b/src/xvc_server.cpp
@@ -6,6 +6,7 @@
 #include "xvc_server.hpp"
 
 #include <arpa/inet.h>
+#include <sys/socket.h>
 #include <errno.h>
 #include <netinet/tcp.h>
 #include <unistd.h>