diff --git a/libs/xous-bio/Cargo.toml b/libs/xous-bio/Cargo.toml
index 424c4226d..a2bd4100a 100644
--- a/libs/xous-bio/Cargo.toml
+++ b/libs/xous-bio/Cargo.toml
@@ -8,7 +8,9 @@ edition = "2021"
 [dependencies]
 log = "0.4.14"
 defmt = { version = "0.3", optional = true }
-utralib = { version = "0.1.24", default-features = false, features = ["cramium-soc"] }
+utralib = { version = "0.1.24", default-features = false, features = [
+    "cramium-soc",
+] }
 
 [target.'cfg(target_os = "xous")'.dependencies]
 xous = "0.9.61"
diff --git a/libs/xous-bio/src/bio_tests/i2c.rs b/libs/xous-bio/src/bio_tests/i2c.rs
new file mode 100644
index 000000000..c9ee1d54d
--- /dev/null
+++ b/libs/xous-bio/src/bio_tests/i2c.rs
@@ -0,0 +1,5 @@
+use crate::*;
+
+pub fn i2c_test() {
+    print!("I2C tests\r");
+}
diff --git a/libs/xous-bio/src/bio_tests/mod.rs b/libs/xous-bio/src/bio_tests/mod.rs
index 10b13edb8..a1c545d0f 100644
--- a/libs/xous-bio/src/bio_tests/mod.rs
+++ b/libs/xous-bio/src/bio_tests/mod.rs
@@ -1,3 +1,5 @@
+mod debug;
+pub mod i2c;
 pub mod spi;
 pub mod units;
 
@@ -88,6 +90,7 @@ pub fn report_api(d: u32) {
 pub fn bio_tests() {
     report_api(crate::get_id());
 
+    i2c::i2c_test();
     units::fifo_level_tests();
     spi::spi_test();
     units::hello_world();
diff --git a/libs/xous-bio/src/lib.rs b/libs/xous-bio/src/lib.rs
index 0b08994f2..3db770741 100644
--- a/libs/xous-bio/src/lib.rs
+++ b/libs/xous-bio/src/lib.rs
@@ -32,7 +32,6 @@ use utralib::generated::*;
 #[cfg(feature = "tests")]
 pub mod bio_tests;
 
-
 #[derive(Debug)]
 pub enum BioError {
     /// specified state machine is not valid
@@ -77,14 +76,11 @@ impl BioSharedState {
         let imem_slice = unsafe {
             core::slice::from_raw_parts_mut(
                 utralib::generated::HW_BIO_RAM_MEM as *mut u32,
-                utralib::generated::HW_BIO_RAM_MEM_LEN
+                utralib::generated::HW_BIO_RAM_MEM_LEN,
             )
         };
 
-        BioSharedState {
-            bio: CSR::new(utra::bio::HW_BIO_BASE as *mut u32),
-            imem_slice,
-        }
+        BioSharedState { bio: CSR::new(utra::bio::HW_BIO_BASE as *mut u32), imem_slice }
     }
 
     #[cfg(not(feature = "baremetal"))]
@@ -98,9 +94,7 @@ impl BioSharedState {
         )
         .unwrap();
 
-        BioSharedState {
-            bio: CSR::new(csr.as_mut_ptr() as *mut u32),
-        }
+        BioSharedState { bio: CSR::new(csr.as_mut_ptr() as *mut u32) }
     }
 
     pub fn load_code(&mut self, prog: &[u8], offset_bytes: usize) {
@@ -160,4 +154,4 @@ macro_rules! bio_code {
             ".word .",
         );
     };
-}
\ No newline at end of file
+}