diff --git a/Cargo.lock b/Cargo.lock
index a6cb7203..327ae8d7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -52,9 +52,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.11.1"
+version = "2.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4512299f36f043ab09a583e57bceb5a5aab7a73db1805848e8fef3c9e8c78b3"
+checksum = "b588b76d00fde79687d7646a9b5bdf3cc0f655e0bbd080335a95d7e96f3587da"
 
 [[package]]
 name = "bitvec"
@@ -138,7 +138,7 @@ dependencies = [
  "rsdp",
  "serde-json-core",
  "usize_conversions",
- "x86_64 0.15.5",
+ "x86_64",
 ]
 
 [[package]]
@@ -154,9 +154,9 @@ dependencies = [
  "rand_hc",
  "raw-cpuid",
  "spinning_top",
- "uart_16550 0.3.2",
+ "uart_16550",
  "usize_conversions",
- "x86_64 0.15.5",
+ "x86_64",
  "xmas-elf",
 ]
 
@@ -170,7 +170,7 @@ dependencies = [
  "log",
  "serde-json-core",
  "uefi",
- "x86_64 0.15.5",
+ "x86_64",
 ]
 
 [[package]]
@@ -318,7 +318,7 @@ version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8283e7331b8c93b9756e0cfdbcfb90312852f953c6faf9bf741e684cc3b6ad69"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "crc",
  "log",
  "uuid",
@@ -615,7 +615,7 @@ version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6fe4565b9518b83ef4f91bb47ce29620ca828bd32cb7e408f0062e9930ba190"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -775,8 +775,8 @@ name = "test_kernel_config_file"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -784,8 +784,8 @@ name = "test_kernel_default_settings"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -793,8 +793,8 @@ name = "test_kernel_fixed_kernel_address"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -802,8 +802,8 @@ name = "test_kernel_higher_half"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -811,8 +811,8 @@ name = "test_kernel_lower_memory_free"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -820,8 +820,8 @@ name = "test_kernel_map_phys_mem"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -829,8 +829,8 @@ name = "test_kernel_min_stack"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -838,8 +838,8 @@ name = "test_kernel_pie"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -847,8 +847,8 @@ name = "test_kernel_ramdisk"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -856,8 +856,8 @@ name = "test_kernel_stack_address"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -865,8 +865,8 @@ name = "test_kernel_write_usable_memory"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
- "uart_16550 0.2.18",
- "x86_64 0.15.5",
+ "uart_16550",
+ "x86_64",
 ]
 
 [[package]]
@@ -891,24 +891,11 @@ dependencies = [
 
 [[package]]
 name = "uart_16550"
-version = "0.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b074eb9300ad949edd74c529c0e8d451625af71bb948e6b65fe69f72dc1363d9"
-dependencies = [
- "bitflags 1.3.2",
- "rustversion",
- "x86_64 0.14.13",
-]
-
-[[package]]
-name = "uart_16550"
-version = "0.3.2"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e492212ac378a5e00da953718dafb1340d9fbaf4f27d6f3c5cab03d931d1c049"
+checksum = "793aaaae8377eac3c014308912c84b969dd0445369059d9074105d27cb6b5a72"
 dependencies = [
- "bitflags 2.11.1",
- "rustversion",
- "x86",
+ "bitflags 2.13.1",
 ]
 
 [[package]]
@@ -926,7 +913,7 @@ version = "0.38.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8f2e1b4a439d82899da4dc0ee8ac742db07a9ff493bc4f31d345c24e12e17e9"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "cfg-if",
  "log",
  "ptr_meta",
@@ -953,7 +940,7 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8868c2fb03f31e55ccf9b47f72e17097bb88c45306cb82f5a2258935520c72d6"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "uguid",
 ]
 
@@ -1075,7 +1062,7 @@ version = "0.244.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "hashbrown 0.15.5",
  "indexmap",
  "semver",
@@ -1160,7 +1147,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
 dependencies = [
  "anyhow",
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "indexmap",
  "log",
  "serde",
@@ -1199,29 +1186,6 @@ dependencies = [
  "tap",
 ]
 
-[[package]]
-name = "x86"
-version = "0.52.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2781db97787217ad2a2845c396a5efe286f87467a5810836db6d74926e94a385"
-dependencies = [
- "bit_field",
- "bitflags 1.3.2",
- "raw-cpuid",
-]
-
-[[package]]
-name = "x86_64"
-version = "0.14.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c101112411baafbb4bf8d33e4c4a80ab5b02d74d2612331c61e8192fc9710491"
-dependencies = [
- "bit_field",
- "bitflags 2.11.1",
- "rustversion",
- "volatile",
-]
-
 [[package]]
 name = "x86_64"
 version = "0.15.5"
@@ -1229,7 +1193,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be4ec631e1a81d50e46c35a4a00322bd076c47491b64c2fb10a7ffa89002c697"
 dependencies = [
  "bit_field",
- "bitflags 2.11.1",
+ "bitflags 2.13.1",
  "const_fn",
  "rustversion",
  "volatile",
diff --git a/Cargo.toml b/Cargo.toml
index 5d753c6f..ae709d43 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,6 +19,7 @@ members = [
     "tests/runner",
 ]
 exclude = ["examples/basic", "examples/test_framework", "tests/test_kernels/"]
+resolver = "3"
 
 [workspace.package]
 # don't forget to update `workspace.dependencies` below
diff --git a/common/Cargo.toml b/common/Cargo.toml
index a3217ca5..7888f66f 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -19,7 +19,7 @@ xmas-elf = "0.8.0"
 raw-cpuid = "10.2.0"
 rand = { version = "0.8.6", default-features = false }
 rand_hc = "0.3.1"
-uart_16550 = "0.3.2"
+uart_16550 = "0.7.0"
 log = "0.4.17"
 
 [dependencies.noto-sans-mono-bitmap]
diff --git a/common/src/serial.rs b/common/src/serial.rs
index 8435c8e1..5c950a9f 100644
--- a/common/src/serial.rs
+++ b/common/src/serial.rs
@@ -1,7 +1,10 @@
 use core::fmt;
+use uart_16550::backend::PioBackend;
 
+// TODO this type can be replaced with Uart16550Tty but using it currently panics
+// in the new constructor.
 pub struct SerialPort {
-    port: uart_16550::SerialPort,
+    port: uart_16550::Uart16550<PioBackend>,
 }
 
 impl SerialPort {
@@ -9,8 +12,10 @@ impl SerialPort {
     ///
     /// unsafe because this function must only be called once
     pub unsafe fn init() -> Self {
-        let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-        port.init();
+        let mut port =
+            unsafe { uart_16550::Uart16550::new_port(0x3F8) }.expect("should be valid port");
+        port.init(uart_16550::Config::default())
+            .expect("should init successfully");
         Self { port }
     }
 }
@@ -19,8 +24,8 @@ impl fmt::Write for SerialPort {
     fn write_str(&mut self, s: &str) -> fmt::Result {
         for char in s.bytes() {
             match char {
-                b'\n' => self.port.write_str("\r\n").unwrap(),
-                byte => self.port.send(byte),
+                b'\n' => self.port.send_bytes_exact(b"\r\n"),
+                byte => self.port.send_bytes_exact(&[byte]),
             }
         }
         Ok(())
diff --git a/examples/basic/Cargo.lock b/examples/basic/Cargo.lock
index 6830aac4..74f02b41 100644
--- a/examples/basic/Cargo.lock
+++ b/examples/basic/Cargo.lock
@@ -471,15 +471,6 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
 
-[[package]]
-name = "raw-cpuid"
-version = "10.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c297679cb867470fa8c9f67dbba74a78d78e3e98d7cf2b08d6d71540f797332"
-dependencies = [
- "bitflags 1.3.2",
-]
-
 [[package]]
 name = "ring"
 version = "0.17.14"
@@ -709,13 +700,11 @@ checksum = "b6f5e870be6c3b371b77fe0ee0bafb859fa4964b4404c27de1d380043c4dda20"
 
 [[package]]
 name = "uart_16550"
-version = "0.4.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94d293f51425981fdb1b766beae254dbb711a17e8c4b549dc69b9b7ee0d478d5"
+checksum = "22ee77075ecbc5e1c9b1236d03ff013dd77c7bb06da181c5c44f1f39b6cf3ff2"
 dependencies = [
  "bitflags 2.13.1",
- "rustversion",
- "x86",
 ]
 
 [[package]]
@@ -929,94 +918,6 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
-[[package]]
-name = "wit-bindgen"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
-dependencies = [
- "wit-bindgen-rust-macro",
-]
-
-[[package]]
-name = "wit-bindgen-core"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
-dependencies = [
- "anyhow",
- "heck",
- "wit-parser",
-]
-
-[[package]]
-name = "wit-bindgen-rust"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
-dependencies = [
- "anyhow",
- "heck",
- "indexmap",
- "prettyplease",
- "syn",
- "wasm-metadata",
- "wit-bindgen-core",
- "wit-component",
-]
-
-[[package]]
-name = "wit-bindgen-rust-macro"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c0f9bfd77e6a48eccf51359e3ae77140a7f50b1e2ebfe62422d8afdaffab17a"
-dependencies = [
- "anyhow",
- "prettyplease",
- "proc-macro2",
- "quote",
- "syn",
- "wit-bindgen-core",
- "wit-bindgen-rust",
-]
-
-[[package]]
-name = "wit-component"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
-dependencies = [
- "anyhow",
- "bitflags 2.11.0",
- "indexmap",
- "log",
- "serde",
- "serde_derive",
- "serde_json",
- "wasm-encoder",
- "wasm-metadata",
- "wasmparser",
- "wit-parser",
-]
-
-[[package]]
-name = "wit-parser"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
-dependencies = [
- "anyhow",
- "id-arena",
- "indexmap",
- "log",
- "semver",
- "serde",
- "serde_derive",
- "serde_json",
- "unicode-xid",
- "wasmparser",
-]
-
 [[package]]
 name = "wyz"
 version = "0.5.1"
@@ -1026,17 +927,6 @@ dependencies = [
  "tap",
 ]
 
-[[package]]
-name = "x86"
-version = "0.52.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2781db97787217ad2a2845c396a5efe286f87467a5810836db6d74926e94a385"
-dependencies = [
- "bit_field",
- "bitflags 1.3.2",
- "raw-cpuid",
-]
-
 [[package]]
 name = "x86_64"
 version = "0.15.5"
diff --git a/examples/basic/kernel/Cargo.toml b/examples/basic/kernel/Cargo.toml
index 5672bb7a..d3c5bea1 100644
--- a/examples/basic/kernel/Cargo.toml
+++ b/examples/basic/kernel/Cargo.toml
@@ -5,5 +5,5 @@ edition = "2024"
 
 [dependencies]
 bootloader_api = "0.11.12"
-uart_16550 = "0.4.0"
+uart_16550 = "0.7.0"
 x86_64 = "0.15.2"
diff --git a/examples/basic/kernel/src/main.rs b/examples/basic/kernel/src/main.rs
index df1eb848..29dc7d62 100644
--- a/examples/basic/kernel/src/main.rs
+++ b/examples/basic/kernel/src/main.rs
@@ -3,6 +3,8 @@
 
 use bootloader_api::{BootInfo, entry_point};
 use core::fmt::Write;
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
@@ -24,10 +26,9 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
 
 entry_point!(kernel_main);
diff --git a/examples/basic/src/main.rs b/examples/basic/src/main.rs
index 4ef3713d..65684c8a 100644
--- a/examples/basic/src/main.rs
+++ b/examples/basic/src/main.rs
@@ -62,8 +62,8 @@ fn main() {
     let mut child = cmd.spawn().expect("failed to start qemu-system-x86_64");
     let status = child.wait().expect("failed to wait on qemu");
     match status.code().unwrap_or(1) {
-        0x10 => 0,  // success
-        0x11 => 1,  // failure
-        _    => 2,  // unknown fault
+        0x10 => 0, // success
+        0x11 => 1, // failure
+        _ => 2,    // unknown fault
     };
 }
diff --git a/tests/test_kernels/Cargo.lock b/tests/test_kernels/Cargo.lock
index 8fd2eb29..f41de2d2 100644
--- a/tests/test_kernels/Cargo.lock
+++ b/tests/test_kernels/Cargo.lock
@@ -10,42 +10,33 @@ checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
 
 [[package]]
 name = "bitflags"
-version = "1.3.2"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
-[[package]]
-name = "bitflags"
-version = "2.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
+checksum = "b4388bee8683e3d04af747c73422af53102d2bd24d9eadb6cbc100baef4b43f8"
 
 [[package]]
 name = "bootloader_api"
 version = "0.11.17"
 
+[[package]]
+name = "const_fn"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413d67b29ef1021b4d60f4aa1e925ca031751e213832b4b1d588fae623c05c60"
+
 [[package]]
 name = "rustversion"
 version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7c45b9784283f1b2e7fb61b42047c2fd678ef0960d4f6f1eba131594cc369d4"
 
-[[package]]
-name = "test_kernel_config_file"
-version = "0.1.0"
-dependencies = [
- "bootloader_api",
- "uart_16550",
- "x86_64 0.15.2",
-]
-
 [[package]]
 name = "test_kernel_default_settings"
 version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -54,7 +45,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -63,7 +54,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -72,7 +63,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -81,7 +72,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -90,7 +81,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -99,7 +90,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -108,7 +99,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -117,7 +108,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -126,7 +117,7 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
@@ -135,18 +126,16 @@ version = "0.1.0"
 dependencies = [
  "bootloader_api",
  "uart_16550",
- "x86_64 0.15.2",
+ "x86_64",
 ]
 
 [[package]]
 name = "uart_16550"
-version = "0.2.19"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "614ff2a87880d4bd4374722268598a970bbad05ced8bf630439417347254ab2e"
+checksum = "22ee77075ecbc5e1c9b1236d03ff013dd77c7bb06da181c5c44f1f39b6cf3ff2"
 dependencies = [
- "bitflags 1.3.2",
- "rustversion",
- "x86_64 0.14.13",
+ "bitflags",
 ]
 
 [[package]]
@@ -157,24 +146,13 @@ checksum = "442887c63f2c839b346c192d047a7c87e73d0689c9157b00b53dcc27dd5ea793"
 
 [[package]]
 name = "x86_64"
-version = "0.14.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c101112411baafbb4bf8d33e4c4a80ab5b02d74d2612331c61e8192fc9710491"
-dependencies = [
- "bit_field",
- "bitflags 2.8.0",
- "rustversion",
- "volatile",
-]
-
-[[package]]
-name = "x86_64"
-version = "0.15.2"
+version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f042214de98141e9c8706e8192b73f56494087cc55ebec28ce10f26c5c364ae"
+checksum = "be4ec631e1a81d50e46c35a4a00322bd076c47491b64c2fb10a7ffa89002c697"
 dependencies = [
  "bit_field",
- "bitflags 2.8.0",
+ "bitflags",
+ "const_fn",
  "rustversion",
  "volatile",
 ]
diff --git a/tests/test_kernels/config_file/Cargo.toml b/tests/test_kernels/config_file/Cargo.toml
index 57cc20eb..a77fe445 100644
--- a/tests/test_kernels/config_file/Cargo.toml
+++ b/tests/test_kernels/config_file/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/config_file/src/lib.rs b/tests/test_kernels/config_file/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/config_file/src/lib.rs
+++ b/tests/test_kernels/config_file/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/default_settings/Cargo.toml b/tests/test_kernels/default_settings/Cargo.toml
index 276ff900..46c4990c 100644
--- a/tests/test_kernels/default_settings/Cargo.toml
+++ b/tests/test_kernels/default_settings/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/default_settings/src/lib.rs b/tests/test_kernels/default_settings/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/default_settings/src/lib.rs
+++ b/tests/test_kernels/default_settings/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/fixed_kernel_address/Cargo.toml b/tests/test_kernels/fixed_kernel_address/Cargo.toml
index 4d8a872c..613cb080 100644
--- a/tests/test_kernels/fixed_kernel_address/Cargo.toml
+++ b/tests/test_kernels/fixed_kernel_address/Cargo.toml
@@ -8,4 +8,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/fixed_kernel_address/src/lib.rs b/tests/test_kernels/fixed_kernel_address/src/lib.rs
index 9a8212e2..b9e342e8 100644
--- a/tests/test_kernels/fixed_kernel_address/src/lib.rs
+++ b/tests/test_kernels/fixed_kernel_address/src/lib.rs
@@ -1,6 +1,8 @@
 #![no_std]
 
 use bootloader_api::{BootloaderConfig, config::Mapping};
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
 
 pub const KERNEL_ADDR: u64 = 0x1987_6543_0000;
 
@@ -30,8 +32,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/higher_half/Cargo.toml b/tests/test_kernels/higher_half/Cargo.toml
index c215c8b3..06119dc4 100644
--- a/tests/test_kernels/higher_half/Cargo.toml
+++ b/tests/test_kernels/higher_half/Cargo.toml
@@ -11,6 +11,6 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
 
 # set to higher half through profile.test.rustflags key in top-level Cargo.toml
diff --git a/tests/test_kernels/higher_half/src/lib.rs b/tests/test_kernels/higher_half/src/lib.rs
index 99ae71dc..47636f04 100644
--- a/tests/test_kernels/higher_half/src/lib.rs
+++ b/tests/test_kernels/higher_half/src/lib.rs
@@ -1,6 +1,8 @@
 #![no_std]
 
 use bootloader_api::BootloaderConfig;
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
 
 pub const BOOTLOADER_CONFIG: BootloaderConfig = {
     let mut config = BootloaderConfig::new_default();
@@ -28,8 +30,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/lower_memory_free/Cargo.toml b/tests/test_kernels/lower_memory_free/Cargo.toml
index 643c33fe..a78e0cb3 100644
--- a/tests/test_kernels/lower_memory_free/Cargo.toml
+++ b/tests/test_kernels/lower_memory_free/Cargo.toml
@@ -8,4 +8,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/lower_memory_free/src/lib.rs b/tests/test_kernels/lower_memory_free/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/lower_memory_free/src/lib.rs
+++ b/tests/test_kernels/lower_memory_free/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/lto/Cargo.toml b/tests/test_kernels/lto/Cargo.toml
index 0f8e4e3c..148d1cf2 100644
--- a/tests/test_kernels/lto/Cargo.toml
+++ b/tests/test_kernels/lto/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/lto/src/lib.rs b/tests/test_kernels/lto/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/lto/src/lib.rs
+++ b/tests/test_kernels/lto/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/map_phys_mem/Cargo.toml b/tests/test_kernels/map_phys_mem/Cargo.toml
index 7850d9f3..19a0d53d 100644
--- a/tests/test_kernels/map_phys_mem/Cargo.toml
+++ b/tests/test_kernels/map_phys_mem/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/map_phys_mem/src/lib.rs b/tests/test_kernels/map_phys_mem/src/lib.rs
index 86301304..5b8ba446 100644
--- a/tests/test_kernels/map_phys_mem/src/lib.rs
+++ b/tests/test_kernels/map_phys_mem/src/lib.rs
@@ -1,6 +1,8 @@
 #![no_std]
 
 use bootloader_api::{BootloaderConfig, config::Mapping};
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
 
 pub const BOOTLOADER_CONFIG: BootloaderConfig = {
     let mut config = BootloaderConfig::new_default();
@@ -28,8 +30,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/min_stack/Cargo.toml b/tests/test_kernels/min_stack/Cargo.toml
index b2864ee8..8bcb1b70 100644
--- a/tests/test_kernels/min_stack/Cargo.toml
+++ b/tests/test_kernels/min_stack/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/min_stack/src/lib.rs b/tests/test_kernels/min_stack/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/min_stack/src/lib.rs
+++ b/tests/test_kernels/min_stack/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/pie/Cargo.toml b/tests/test_kernels/pie/Cargo.toml
index 93f71abd..f89be465 100644
--- a/tests/test_kernels/pie/Cargo.toml
+++ b/tests/test_kernels/pie/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/pie/src/lib.rs b/tests/test_kernels/pie/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/pie/src/lib.rs
+++ b/tests/test_kernels/pie/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/ramdisk/Cargo.toml b/tests/test_kernels/ramdisk/Cargo.toml
index cc48a77e..76407dc8 100644
--- a/tests/test_kernels/ramdisk/Cargo.toml
+++ b/tests/test_kernels/ramdisk/Cargo.toml
@@ -9,4 +9,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/ramdisk/src/lib.rs b/tests/test_kernels/ramdisk/src/lib.rs
index 00ea92a6..b8185d92 100644
--- a/tests/test_kernels/ramdisk/src/lib.rs
+++ b/tests/test_kernels/ramdisk/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -22,8 +25,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/stack_address/Cargo.toml b/tests/test_kernels/stack_address/Cargo.toml
index 28b59198..abddc136 100644
--- a/tests/test_kernels/stack_address/Cargo.toml
+++ b/tests/test_kernels/stack_address/Cargo.toml
@@ -8,4 +8,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/stack_address/src/lib.rs b/tests/test_kernels/stack_address/src/lib.rs
index 9a8212e2..b9e342e8 100644
--- a/tests/test_kernels/stack_address/src/lib.rs
+++ b/tests/test_kernels/stack_address/src/lib.rs
@@ -1,6 +1,8 @@
 #![no_std]
 
 use bootloader_api::{BootloaderConfig, config::Mapping};
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
 
 pub const KERNEL_ADDR: u64 = 0x1987_6543_0000;
 
@@ -30,8 +32,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }
diff --git a/tests/test_kernels/write_usable_memory/Cargo.toml b/tests/test_kernels/write_usable_memory/Cargo.toml
index 1a9d1f96..6b7d7597 100644
--- a/tests/test_kernels/write_usable_memory/Cargo.toml
+++ b/tests/test_kernels/write_usable_memory/Cargo.toml
@@ -8,4 +8,4 @@ bootloader_api = { path = "../../../api" }
 x86_64 = { version = "0.15.2", default-features = false, features = [
     "instructions",
 ] }
-uart_16550 = "0.2.10"
+uart_16550 = "0.7.0"
diff --git a/tests/test_kernels/write_usable_memory/src/lib.rs b/tests/test_kernels/write_usable_memory/src/lib.rs
index 4e46fdb6..c1536470 100644
--- a/tests/test_kernels/write_usable_memory/src/lib.rs
+++ b/tests/test_kernels/write_usable_memory/src/lib.rs
@@ -1,5 +1,8 @@
 #![no_std]
 
+use uart_16550::backend::PioBackend;
+use uart_16550::{Config, Uart16550Tty};
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u32)]
 pub enum QemuExitCode {
@@ -20,8 +23,7 @@ pub fn exit_qemu(exit_code: QemuExitCode) -> ! {
     }
 }
 
-pub fn serial() -> uart_16550::SerialPort {
-    let mut port = unsafe { uart_16550::SerialPort::new(0x3F8) };
-    port.init();
-    port
+pub fn serial() -> Uart16550Tty<PioBackend> {
+    unsafe { Uart16550Tty::new_port(0x3F8, Config::default()) }
+        .expect("should initialize serial device from valid config and valid port")
 }