diff --git a/src/header/termios/mod.rs b/src/header/termios/mod.rs
index 9ec23f7653..ffd1e94c10 100644
--- a/src/header/termios/mod.rs
+++ b/src/header/termios/mod.rs
@@ -91,6 +91,10 @@ pub struct termios {
     pub c_lflag: tcflag_t,
     /// Control characters.
     pub c_cc: [cc_t; NCCS],
+    /// Input baud rate (non-POSIX; B0..=B4000000).
+    pub __c_ispeed: speed_t,
+    /// Output baud rate (non-POSIX; B0..=B4000000).
+    pub __c_ospeed: speed_t,
 }
 
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/tcgetattr.html>.
@@ -171,8 +175,7 @@ pub unsafe extern "C" fn cfgetispeed(termios_p: *const termios) -> speed_t {
     }
     #[cfg(target_os = "redox")]
     {
-        //TODO
-        0
+        unsafe { (*termios_p).__c_ispeed }
     }
 }
 
@@ -193,8 +196,7 @@ pub unsafe extern "C" fn cfgetospeed(termios_p: *const termios) -> speed_t {
     }
     #[cfg(target_os = "redox")]
     {
-        //TODO
-        0
+        unsafe { (*termios_p).__c_ospeed }
     }
 }
 
@@ -208,8 +210,6 @@ pub unsafe extern "C" fn cfgetospeed(termios_p: *const termios) -> speed_t {
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn cfsetispeed(termios_p: *mut termios, speed: speed_t) -> c_int {
     match speed as usize {
-        // TODO redox impl
-        #[cfg(target_os = "linux")]
         B0..=B38400 | B57600..=B4000000 => {
             unsafe { (*termios_p).__c_ispeed = speed };
             0
@@ -231,8 +231,6 @@ pub unsafe extern "C" fn cfsetispeed(termios_p: *mut termios, speed: speed_t) ->
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn cfsetospeed(termios_p: *mut termios, speed: speed_t) -> c_int {
     match speed as usize {
-        // TODO redox impl
-        #[cfg(target_os = "linux")]
         B0..=B38400 | B57600..=B4000000 => {
             unsafe { (*termios_p).__c_ospeed = speed };
             0