diff --git a/.cargo/config b/.cargo/config.toml
similarity index 100%
rename from .cargo/config
rename to .cargo/config.toml
diff --git a/Cargo.toml b/Cargo.toml
index d6c066e..49768a7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ description = "libusb based driver for the CP2130 USB-SPI bridge by Silicon Labs
 repository = "https://github.com/ryankurte/rust-driver-cp2130"
 keywords = [ "driver", "cp2130", "usb", "spi", "embedded" ]
 license = "MPL-2.0"
-edition = "2018"
+edition = "2021"
 
 [features]
 util = [ "clap", "simplelog", "rand", "hex" ]
@@ -14,14 +14,14 @@ examples = []
 default = [ "util" ]
 
 [dependencies]
-embedded-hal = { version = "1.0.0-rc.1" }
+embedded-hal = { version = "1.0.0" }
 
 libc = "0.2.66"
 log = "0.4.8"
 bitflags = "1.2.1"
 byteorder = "1.3.2"
 lazy_static = "1.4.0"
-failure = "0.1.7"
+thiserror = "1.0.58"
 rusb = "0.9.0"
 
 clap = { version = "4.4.7", optional = true, features = [ "derive", "env" ] }
@@ -30,10 +30,10 @@ hex = { version = "0.4.2", optional = true }
 rand = { version = "0.8.0", optional = true }
 
 [dev-dependencies]
-ssd1306 = "0.7.0"
-embedded-graphics = "0.7.1"
-linux-embedded-hal = "0.3.0"
-embedded-hal-compat = "0.4.0"
+ssd1306 = "0.8.4"
+embedded-graphics = "0.8.1"
+linux-embedded-hal = "0.4.0"
+#embedded-hal-compat = "0.12.0"
 
 [[bin]]
 name = "cp2130-util"
diff --git a/src/device.rs b/src/device.rs
index b0a16a9..c1e157d 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -8,6 +8,7 @@ use std::str::FromStr;
 
 use byteorder::{LE, BE, ByteOrder};
 use bitflags::bitflags;
+use log::{trace, debug, error};
 
 use rusb::{Device as UsbDevice, Context as UsbContext, DeviceDescriptor, DeviceHandle, Direction, TransferType};
 
@@ -155,7 +156,7 @@ pub(crate) struct Inner {
 /// TODO: given it's one device this could all be hard-coded
 #[derive(Debug)]
 struct Endpoints {
-    control: Endpoint,
+    _control: Endpoint,
     read: Endpoint,
     write: Endpoint,
 }
@@ -328,7 +329,7 @@ impl Inner {
         handle.set_active_configuration(read.config)?;
         
         // Build endpoints
-        let endpoints = Endpoints{control, write, read};
+        let endpoints = Endpoints{_control: control, write, read};
         Ok((Inner{_device: device, handle, endpoints, gpio_allocated: [false; 11], spi_clock: SpiClock::Clock12Mhz}, info))
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index f983fd3..2bc8ffe 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,14 +5,6 @@
 
 use std::{sync::{Arc, Mutex}, time::{Instant, Duration}};
 
-#[macro_use]
-extern crate log;
-
-#[macro_use]
-extern crate lazy_static;
-
-use failure::Fail;
-
 pub use embedded_hal::spi::{Mode as SpiMode};
 use rusb::{Device as UsbDevice, Context as UsbContext, DeviceDescriptor};
 
@@ -24,24 +16,24 @@ pub use crate::device::{UsbOptions, GpioMode, GpioLevel, SpiConfig, SpiClock};
 use crate::device::*;
 
 
-#[derive(Debug, Fail)]
+#[derive(Debug, thiserror::Error)]
 pub enum Error {
 //    Io(IoError),
-    #[fail(display = "USB error: {:?}", 0)]
+    #[error("USB error: {0}")]
     Usb(rusb::Error),
 
-    #[fail(display = "No matching endpoint languages found")]
+    #[error("No matching endpoint languages found")]
     NoLanguages,
 
-    #[fail(display = "No valid endpoint configuration found")]
+    #[error("No valid endpoint configuration found")]
     Configurations,
-    #[fail(display = "No matching endpoint found")]
+    #[error("No matching endpoint found")]
     Endpoint,
-    #[fail(display = "GPIO pin already in use")]
+    #[error("GPIO pin already in use")]
     GpioInUse,
-    #[fail(display = "Invalid SPI index")]
+    #[error("Invalid SPI index")]
     InvalidIndex,
-    #[fail(display = "Invalid SPI baud rate")]
+    #[error("Invalid SPI baud rate")]
     InvalidBaud,
 }
 
@@ -200,9 +192,9 @@ impl embedded_hal::spi::SpiDevice<u8> for Spi {
                 SpiOp::Transfer(r, w) => self.transfer(r, w)?,
                 SpiOp::TransferInPlace(b) => self.transfer_in_place(b)?,
                 SpiOp::Read(r) => self.read(r)?,
-                SpiOp::DelayUs(us) => {
+                SpiOp::DelayNs(ns) => {
                     let now = Instant::now();
-                    while now.elapsed() < Duration::from_micros(*us as u64) {}
+                    while now.elapsed() < Duration::from_nanos(*ns as u64) {}
                 }
             }
         }
@@ -250,11 +242,11 @@ pub struct InputPin {
 }
 
 impl  embedded_hal::digital::InputPin for InputPin {
-    fn is_high(&self) -> Result<bool, Self::Error> {
+    fn is_high(&mut self) -> Result<bool, Self::Error> {
         self.inner.lock().unwrap().get_gpio_level(self.index)
     }
 
-    fn is_low(&self) -> Result<bool, Self::Error> {
+    fn is_low(&mut self) -> Result<bool, Self::Error> {
         let v = self.is_high()?;
         Ok(!v)
     }
diff --git a/src/manager.rs b/src/manager.rs
index bd27d8f..a90f927 100644
--- a/src/manager.rs
+++ b/src/manager.rs
@@ -11,10 +11,12 @@ use std::num::ParseIntError;
 #[cfg(feature = "clap")]
 use clap::Parser;
 
+use log::{trace, debug, error};
+
 use crate::Error;
 use crate::device::{VID, PID};
 
-lazy_static!{
+lazy_static::lazy_static!{
     // LibUSB context created automagically
     static ref CONTEXT: UsbContext = {
         UsbContext::new().unwrap()