diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index 70fe6e2edd03b..54d93274d98ac 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -1577,6 +1577,14 @@ f! {
         let (idx, offset) = ((cpu >> 6) & 3, cpu & 63);
         0 != cpuset.ary[idx] & (1 << offset)
     }
+
+    pub fn major(dev: ::dev_t) -> ::c_int {
+         ((dev >> 8) & 0xff) as ::c_int
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_int {
+        (dev & 0xffff00ff) as ::c_int
+    }
 }
 
 safe_f! {
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs
index 563c0f936ffef..8541158a19613 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs
@@ -442,6 +442,16 @@ safe_f! {
     }
 }
 
+f! {
+    pub fn major(dev: ::dev_t) -> ::c_int {
+         ((dev >> 8) & 0xff) as ::c_int
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_int {
+        (dev & 0xffff00ff) as ::c_int
+    }
+}
+
 extern "C" {
     // Return type ::c_int was removed in FreeBSD 12
     pub fn setgrent() -> ::c_int;
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
index df00b6c1d63fe..95000561c45d1 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
@@ -462,6 +462,16 @@ safe_f! {
     }
 }
 
+f! {
+    pub fn major(dev: ::dev_t) -> ::c_int {
+        (((dev >> 32) & 0xffffff00) | ((dev >> 8) & 0xff)) as ::c_int
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_int {
+        (((dev >> 24) & 0xff00) | (dev & 0xffff00ff)) as ::c_int
+    }
+}
+
 extern "C" {
     pub fn setgrent();
     pub fn mprotect(addr: *mut ::c_void, len: ::size_t, prot: ::c_int) -> ::c_int;
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
index 798431c35e191..cccd642998ad5 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
@@ -481,6 +481,16 @@ safe_f! {
     }
 }
 
+f! {
+    pub fn major(dev: ::dev_t) -> ::c_int {
+        (((dev >> 32) & 0xffffff00) | ((dev >> 8) & 0xff)) as ::c_int
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_int {
+        (((dev >> 24) & 0xff00) | (dev & 0xffff00ff)) as ::c_int
+    }
+}
+
 extern "C" {
     pub fn setgrent();
     pub fn mprotect(addr: *mut ::c_void, len: ::size_t, prot: ::c_int) -> ::c_int;
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs
index 3e0ec40519461..d4d2a92796f1b 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs
@@ -481,6 +481,16 @@ safe_f! {
     }
 }
 
+f! {
+    pub fn major(dev: ::dev_t) -> ::c_int {
+        (((dev >> 32) & 0xffffff00) | ((dev >> 8) & 0xff)) as ::c_int
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_int {
+        (((dev >> 24) & 0xff00) | (dev & 0xffff00ff)) as ::c_int
+    }
+}
+
 extern "C" {
     pub fn setgrent();
     pub fn mprotect(addr: *mut ::c_void, len: ::size_t, prot: ::c_int) -> ::c_int;
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 41f6b23d123ee..b454fd0b6e3c6 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -2383,6 +2383,17 @@ f! {
     pub fn PROT_MPROTECT_EXTRACT(x: ::c_int) -> ::c_int {
         (x >> 3) & 0x7
     }
+
+    pub fn major(dev: ::dev_t) -> ::c_int {
+        (((dev as u32) & 0x000fff00) >>  8) as ::c_int
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_int {
+        let mut res = 0;
+        res |= ((dev as u32) & 0xfff00000) >> 12;
+        res |= ((dev as u32) & 0x000000ff);
+        res as ::c_int
+    }
 }
 
 safe_f! {
diff --git a/src/unix/bsd/netbsdlike/openbsd/mod.rs b/src/unix/bsd/netbsdlike/openbsd/mod.rs
index 3c966990a50cd..4d58c91fee65d 100644
--- a/src/unix/bsd/netbsdlike/openbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/openbsd/mod.rs
@@ -1709,6 +1709,19 @@ f! {
         (_ALIGN(::mem::size_of::<::cmsghdr>()) + _ALIGN(length as usize))
             as ::c_uint
     }
+
+    pub fn major(dev: ::dev_t) -> ::c_uint{
+        ((dev as ::c_uint) >> 8) & 0xff
+    }
+
+    pub fn minor(dev: ::dev_t) -> ::c_uint {
+        let dev = dev as ::c_uint;
+        let mut res = 0;
+        res |= (dev) & 0xff;
+        res |= ((dev) & 0xffff0000) >> 8;
+
+        res
+    }
 }
 
 safe_f! {
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index 6b0557d359c9e..dff5988c9227a 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -2577,6 +2577,8 @@ const _CMSG_HDR_ALIGNMENT: usize = 4;
 
 const _CMSG_DATA_ALIGNMENT: usize = ::mem::size_of::<::c_int>();
 
+const NEWDEV: ::c_int = 1;
+
 const_fn! {
     {const} fn _CMSG_HDR_ALIGN(p: usize) -> usize {
         (p + _CMSG_HDR_ALIGNMENT - 1) & !(_CMSG_HDR_ALIGNMENT - 1)
@@ -3182,6 +3184,10 @@ extern "C" {
     pub fn backtrace(buffer: *mut *mut ::c_void, size: ::c_int) -> ::c_int;
     pub fn backtrace_symbols(buffer: *const *mut ::c_void, size: ::c_int) -> *mut *mut ::c_char;
     pub fn backtrace_symbols_fd(buffer: *const *mut ::c_void, size: ::c_int, fd: ::c_int);
+
+    fn __major(version: ::c_int, devnum: ::dev_t) -> ::major_t;
+    fn __minor(version: ::c_int, devnum: ::dev_t) -> ::minor_t;
+    fn __makedev(version: ::c_int, majdev: ::major_t, mindev: ::minor_t) -> ::dev_t;
 }
 
 #[link(name = "sendfile")]
@@ -3238,6 +3244,18 @@ extern "C" {
     pub fn lgrp_root(cookie: ::lgrp_cookie_t) -> ::lgrp_id_t;
 }
 
+pub unsafe fn major(device: ::dev_t) -> ::major_t {
+    __major(NEWDEV, device)
+}
+
+pub unsafe fn minor(device: ::dev_t) -> ::minor_t {
+    __minor(NEWDEV, device)
+}
+
+pub unsafe fn makedev(maj: ::major_t, min: ::minor_t) -> ::dev_t {
+    __makedev(NEWDEV, maj, min)
+}
+
 mod compat;
 pub use self::compat::*;