From b3bee419f0dcd68352c8fbaae28b188f75a59f69 Mon Sep 17 00:00:00 2001
From: Cain Sakura <cain@iloli.cc>
Date: Fri, 6 Mar 2026 21:42:13 +0800
Subject: [PATCH] fix: Build error under rt-thread using only U8G2_USE_HW_I2C
 without U8G2_USE_HW_SPI

---
 sys/rt-thread/port/u8g2_port.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/rt-thread/port/u8g2_port.c b/sys/rt-thread/port/u8g2_port.c
index 68a5cdb6..f886c3d9 100644
--- a/sys/rt-thread/port/u8g2_port.c
+++ b/sys/rt-thread/port/u8g2_port.c
@@ -9,7 +9,7 @@ static struct rt_i2c_bus_device *i2c_bus = RT_NULL;
 
 #if defined U8G2_USE_HW_SPI
 static struct rt_spi_device u8g2_spi_dev;
-
+#endif
 
 static inline void u8g2_port_pin_mode(uint8_t pin, rt_uint8_t mode)
 {
@@ -37,6 +37,7 @@ static inline int u8g2_port_pin_read(uint8_t pin)
     return 0;
 }
 
+#if defined U8G2_USE_HW_SPI
 int rt_hw_spi_config(uint8_t spi_mode, uint32_t max_hz, uint8_t cs_pin )
 {
     rt_err_t res;