diff --git a/src/commands/get_chip_info.rs b/src/commands/get_chip_info.rs
index cf61e38..3c82003 100644
--- a/src/commands/get_chip_info.rs
+++ b/src/commands/get_chip_info.rs
@@ -1,4 +1,4 @@
-use crate::commands::CrosEcCmds;
+use crate::commands::CrosEcCmd;
 use crate::crosec::dev::ec_command;
 use crate::crosec::EcCmdResult;
 use std::mem::size_of;
@@ -22,7 +22,7 @@ pub fn ec_cmd_get_chip_info() -> EcCmdResult<(String, String, String)> {
     let params_slice =
         unsafe { slice::from_raw_parts(params_ptr, size_of::<EcResponseGetChipInfo>()) };
 
-    let result = ec_command(CrosEcCmds::GetChipInfo as u32, 0, params_slice)?;
+    let result = ec_command(CrosEcCmd::GetChipInfo, 0, params_slice)?;
     let response: EcResponseGetChipInfo = unsafe { std::ptr::read(result.as_ptr() as *const _) };
 
     let vendor = String::from_utf8(response.vendor.to_vec()).unwrap_or(String::from(""));
diff --git a/src/commands/hello.rs b/src/commands/hello.rs
index 4275812..d054637 100644
--- a/src/commands/hello.rs
+++ b/src/commands/hello.rs
@@ -1,4 +1,4 @@
-use crate::commands::CrosEcCmds;
+use crate::commands::CrosEcCmd;
 use crate::crosec::dev::ec_command;
 use crate::crosec::EcCmdResult;
 use std::mem::size_of;
@@ -24,7 +24,7 @@ pub fn ec_cmd_hello() -> EcCmdResult<bool> {
     let params_ptr = &params as *const _ as *const u8;
     let params_slice = unsafe { slice::from_raw_parts(params_ptr, size_of::<EcParamsHello>()) };
 
-    let result = ec_command(CrosEcCmds::Hello as u32, 0, params_slice)?;
+    let result = ec_command(CrosEcCmd::Hello, 0, params_slice)?;
     let response: EcResponseHello = unsafe { std::ptr::read(result.as_ptr() as *const _) };
 
     Ok(response.out_data == EXPECTED_OUTPUT)
diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index e9587ab..b9c4cc2 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -1,4 +1,5 @@
-pub enum CrosEcCmds {
+#[repr(u32)]
+pub enum CrosEcCmd {
     Hello = 0x0001,
     Version = 0x0002,
     GetBuildInfo = 0x0004,
diff --git a/src/commands/version.rs b/src/commands/version.rs
index ca35f1a..3ce43ec 100644
--- a/src/commands/version.rs
+++ b/src/commands/version.rs
@@ -1,4 +1,4 @@
-use crate::commands::CrosEcCmds;
+use crate::commands::CrosEcCmd;
 use crate::crosec::dev::ec_command;
 use crate::crosec::dev::BUF_SIZE;
 use crate::crosec::EcCmdResult;
@@ -41,7 +41,7 @@ pub fn ec_cmd_version() -> EcCmdResult<(String, String, String, String, String)>
     let params_slice =
         unsafe { slice::from_raw_parts(params_ptr, size_of::<EcResponseVersionV1>()) };
 
-    let result = ec_command(CrosEcCmds::Version as u32, 0, params_slice)?;
+    let result = ec_command(CrosEcCmd::Version, 0, params_slice)?;
     let response: EcResponseVersionV1 = unsafe { std::ptr::read(result.as_ptr() as *const _) };
 
     let ro_ver = String::from_utf8(response.version_string_ro.to_vec()).unwrap_or(String::from(""));
@@ -59,7 +59,7 @@ pub fn ec_cmd_version() -> EcCmdResult<(String, String, String, String, String)>
     let build_string_ptr = &build_string as *const _ as *const u8;
     let build_string_slice = unsafe { slice::from_raw_parts(build_string_ptr, BUF_SIZE) };
 
-    let result = ec_command(CrosEcCmds::GetBuildInfo as u32, 0, build_string_slice)?;
+    let result = ec_command(CrosEcCmd::GetBuildInfo, 0, build_string_slice)?;
     let response: [u8; BUF_SIZE] = unsafe { std::ptr::read(result.as_ptr() as *const _) };
 
     let build_info = String::from_utf8(response.to_vec()).unwrap_or(String::from(""));
diff --git a/src/crosec/dev.rs b/src/crosec/dev.rs
index 8b890df..0f9d350 100644
--- a/src/crosec/dev.rs
+++ b/src/crosec/dev.rs
@@ -1,3 +1,4 @@
+use crate::commands::CrosEcCmd;
 use crate::crosec::EcCmdResult;
 use crate::crosec::EcError;
 use nix::ioctl_readwrite;
@@ -21,7 +22,7 @@ struct _CrosEcCommandV2 {
 #[repr(C)]
 struct CrosEcCommandV2 {
     version: u32,
-    command: u32,
+    command: CrosEcCmd,
     outsize: u32,
     insize: u32,
     result: u32,
@@ -46,7 +47,7 @@ fn init() {
     };
 }
 
-pub fn ec_command(command: u32, command_version: u8, data: &[u8]) -> EcCmdResult<Vec<u8>> {
+pub fn ec_command(command: CrosEcCmd, command_version: u8, data: &[u8]) -> EcCmdResult<Vec<u8>> {
     init();
 
     let size = std::cmp::min(IN_SIZE, data.len());