From 1cb93af4f71edcadd2877102ee98af5ee00bc46f Mon Sep 17 00:00:00 2001
From: Daniel <0xc0decafe@users.noreply.github.com>
Date: Sun, 15 Oct 2023 13:52:05 +0200
Subject: [PATCH] Adjust syscall no. for 32bit platforms

---
 smbus2/smbus2.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/smbus2/smbus2.py b/smbus2/smbus2.py
index 2f71a83..7d0cbcb 100644
--- a/smbus2/smbus2.py
+++ b/smbus2/smbus2.py
@@ -22,7 +22,7 @@
 
 import os
 import sys
-from platform import system
+from platform import system, architecture
 from fcntl import ioctl
 from ctypes import c_uint32, c_uint8, c_uint16, c_char, POINTER, Structure, Array, Union, create_string_buffer, string_at
 
@@ -51,7 +51,8 @@
 I2C_SMBUS_BLOCK_MAX = 32
 
 #FreeBSD RDWR syscall
-I2CRDWR = 0x80106906
+(bits, _) = architecture()
+I2CRDWR = { '64bit': 0x80106906, '32bit': 0x80086906 }[bits]
 
 # To determine what functionality is present (uapi/linux/i2c.h)
 try: