diff --git a/ahcid/Cargo.toml b/ahcid/Cargo.toml
index 324ea857b2..f7183317cb 100644
--- a/ahcid/Cargo.toml
+++ b/ahcid/Cargo.toml
@@ -7,4 +7,4 @@ bitflags = "*"
 dma = { path = "../../crates/dma/" }
 io = { path = "../../crates/io/" }
 spin = "*"
-syscall = { path = "../../syscall/" }
+redox_syscall = { path = "../../syscall/" }
diff --git a/e1000d/Cargo.toml b/e1000d/Cargo.toml
index 9a9f2ab0a9..ec8c45e1ab 100644
--- a/e1000d/Cargo.toml
+++ b/e1000d/Cargo.toml
@@ -8,4 +8,4 @@ dma = { path = "../../crates/dma/" }
 event = { path = "../../crates/event/" }
 io = { path = "../../crates/io/" }
 netutils = { path = "../../programs/netutils/" }
-syscall = { path = "../../syscall/" }
+redox_syscall = { path = "../../syscall/" }
diff --git a/pcid/Cargo.toml b/pcid/Cargo.toml
index 222032c14b..a64211d070 100644
--- a/pcid/Cargo.toml
+++ b/pcid/Cargo.toml
@@ -3,11 +3,9 @@ name = "pcid"
 version = "0.1.0"
 
 [dependencies]
+redox_syscall = { path = "../../syscall/" }
 rustc-serialize = { git = "https://github.com/redox-os/rustc-serialize.git" }
 toml = "*"
 
-[dependencies.syscall]
-path = "../../syscall/"
-
 [replace]
 "rustc-serialize:0.3.19" = { git = "https://github.com/redox-os/rustc-serialize.git" }
diff --git a/ps2d/Cargo.toml b/ps2d/Cargo.toml
index 0c10180c45..98ebbf218f 100644
--- a/ps2d/Cargo.toml
+++ b/ps2d/Cargo.toml
@@ -7,4 +7,4 @@ bitflags = "*"
 event = { path = "../../crates/event/" }
 io = { path = "../../crates/io/" }
 orbclient = "0.1"
-syscall = { path = "../../syscall/" }
+redox_syscall = { path = "../../syscall/" }
diff --git a/rtl8168d/Cargo.toml b/rtl8168d/Cargo.toml
index a4243e736d..e72a130458 100644
--- a/rtl8168d/Cargo.toml
+++ b/rtl8168d/Cargo.toml
@@ -8,4 +8,4 @@ dma = { path = "../../crates/dma/" }
 event = { path = "../../crates/event/" }
 io = { path = "../../crates/io/" }
 netutils = { path = "../../programs/netutils/" }
-syscall = { path = "../../syscall/" }
+redox_syscall = { path = "../../syscall/" }
diff --git a/vesad/Cargo.toml b/vesad/Cargo.toml
index 8045332cc5..db87c0d1f9 100644
--- a/vesad/Cargo.toml
+++ b/vesad/Cargo.toml
@@ -4,9 +4,9 @@ version = "0.1.0"
 
 [dependencies]
 orbclient = "0.1"
-ransid = { git = "https://github.com/redox-os/ransid.git" }
+ransid = "0.2"
 rusttype = { git = "https://github.com/dylanede/rusttype.git", optional = true }
-syscall = { path = "../../syscall/" }
+redox_syscall = "0.1"
 
 [features]
 default = []
diff --git a/vesad/src/scheme.rs b/vesad/src/scheme.rs
index c81f558c99..a58e7fd112 100644
--- a/vesad/src/scheme.rs
+++ b/vesad/src/scheme.rs
@@ -72,6 +72,14 @@ impl SchemeMut for DisplayScheme {
         }
     }
 
+    fn fmap(&mut self, id: usize, offset: usize, size: usize) -> Result<usize> {
+        if let Some(screen) = self.screens.get(&id) {
+            screen.map(offset, size)
+        } else {
+            Err(Error::new(EBADF))
+        }
+    }
+
     fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
         let path_str = if id == 0 {
             format!("display:input")
diff --git a/vesad/src/screen/graphic.rs b/vesad/src/screen/graphic.rs
index 11a6e2e935..b91192267a 100644
--- a/vesad/src/screen/graphic.rs
+++ b/vesad/src/screen/graphic.rs
@@ -45,6 +45,14 @@ impl Screen for GraphicScreen {
         Ok(0)
     }
 
+    fn map(&self, offset: usize, size: usize) -> Result<usize> {
+        if offset + size <= self.display.offscreen.len() * 4 {
+            Ok(self.display.offscreen.as_ptr() as usize + offset)
+        } else {
+            Err(Error::new(EINVAL))
+        }
+    }
+
     fn input(&mut self, event: &Event) {
         if let EventOption::Mouse(mut mouse_event) = event.to_option() {
             let x = cmp::max(0, cmp::min(self.display.width as i32, self.mouse_x + mouse_event.x));
diff --git a/vesad/src/screen/mod.rs b/vesad/src/screen/mod.rs
index 6a0d5fdfad..9909694a99 100644
--- a/vesad/src/screen/mod.rs
+++ b/vesad/src/screen/mod.rs
@@ -14,6 +14,8 @@ pub trait Screen {
 
     fn event(&mut self, flags: usize) -> Result<usize>;
 
+    fn map(&self, offset: usize, size: usize) -> Result<usize>;
+
     fn input(&mut self, event: &Event);
 
     fn read(&mut self, buf: &mut [u8]) -> Result<usize>;
diff --git a/vesad/src/screen/text.rs b/vesad/src/screen/text.rs
index 1fcb988fcd..6d267d7e24 100644
--- a/vesad/src/screen/text.rs
+++ b/vesad/src/screen/text.rs
@@ -3,7 +3,7 @@ extern crate ransid;
 use std::collections::{BTreeSet, VecDeque};
 
 use orbclient::{Event, EventOption};
-use syscall::Result;
+use syscall::error::*;
 
 use display::Display;
 use screen::Screen;
@@ -48,6 +48,10 @@ impl Screen for TextScreen {
         Ok(0)
     }
 
+    fn map(&self, offset: usize, size: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
     fn input(&mut self, event: &Event) {
         let mut buf = vec![];