diff --git a/Cargo.lock b/Cargo.lock
index d88a77e..719d80e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -13,7 +13,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bitflags"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -35,10 +35,10 @@ name = "kernel"
 version = "0.1.0"
 dependencies = [
  "alloc_kernel 0.1.0",
- "bitflags 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "goblin 0.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "raw-cpuid 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.31",
+ "redox_syscall 0.1.32",
  "spin 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "x86 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -75,7 +75,7 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.31"
+version = "0.1.32"
 
 [[package]]
 name = "scroll"
@@ -97,7 +97,7 @@ dependencies = [
 
 [metadata]
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
-"checksum bitflags 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f5cde24d1b2e2216a726368b2363a273739c91f4e3eb4e0dd12d672d396ad989"
+"checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
 "checksum gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)" = "5e33ec290da0d127825013597dbdfc28bee4964690c7ce1166cbc2a7bd08b1bb"
 "checksum goblin 0.0.10 (registry+https://github.com/rust-lang/crates.io-index)" = "81af14056c25d33759862c5ae2035452acb1255bfb1b16db57819f183921e259"
 "checksum linked_list_allocator 0.4.1 (git+https://github.com/redox-os/linked-list-allocator.git)" = "<none>"
diff --git a/src/scheme/user.rs b/src/scheme/user.rs
index ed2b06c..31b69be 100644
--- a/src/scheme/user.rs
+++ b/src/scheme/user.rs
@@ -280,6 +280,16 @@ impl Scheme for UserScheme {
         inner.call(SYS_LSEEK, file, position, whence)
     }
 
+    fn fchmod(&self, file: usize, mode: u16) -> Result<usize> {
+        let inner = self.inner.upgrade().ok_or(Error::new(ENODEV))?;
+        inner.call(SYS_FCHMOD, file, mode as usize, 0)
+    }
+
+    fn fchown(&self, file: usize, uid: u32, gid: u32) -> Result<usize> {
+        let inner = self.inner.upgrade().ok_or(Error::new(ENODEV))?;
+        inner.call(SYS_FCHOWN, file, uid as usize, gid as usize)
+    }
+
     fn fcntl(&self, file: usize, cmd: usize, arg: usize) -> Result<usize> {
         let inner = self.inner.upgrade().ok_or(Error::new(ENODEV))?;
         inner.call(SYS_FCNTL, file, cmd, arg)
diff --git a/syscall b/syscall
index 71c51bd..3c76573 160000
--- a/syscall
+++ b/syscall
@@ -1 +1 @@
-Subproject commit 71c51bdbbbac3500074a8ed15a2912f38ee7a0f6
+Subproject commit 3c765737a5e9146ffb241c67050c1be9bf28aab7