From 2ac7eedec18bd04a52aa438b1bb009726a81be67 Mon Sep 17 00:00:00 2001
From: morgan <mc@m-labs.hk>
Date: Wed, 30 Aug 2023 15:33:44 +0800
Subject: [PATCH] firmware: fix compilation without virtual LEDs
 Co-authored-by: morgan <mc@m-labs.hk> Co-committed-by: morgan <mc@m-labs.hk>

---
 src/libboard_artiq/src/io_expander.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libboard_artiq/src/io_expander.rs b/src/libboard_artiq/src/io_expander.rs
index f9d79ac..e7f659d 100644
--- a/src/libboard_artiq/src/io_expander.rs
+++ b/src/libboard_artiq/src/io_expander.rs
@@ -152,6 +152,7 @@ impl IoExpander {
     }
 
     pub fn service(&mut self, i2c: &mut i2c::I2c) -> Result<(), &'static str> {
+        #[cfg(has_virtual_leds)]        
         for (led, port, bit) in self.virtual_led_mapping.iter() {
             let level = unsafe { csr::virtual_leds::status_read() >> led & 1 };
             self.set(*port, *bit, level != 0);