diff --git a/tty_bsd.go b/tty_bsd.go
index 5067564..d9881ce 100644
--- a/tty_bsd.go
+++ b/tty_bsd.go
@@ -7,15 +7,18 @@ import (
 	"unsafe"
 )
 
+// IsTty checks if the given fd is a tty
 func IsTty(fd uintptr) bool {
 	var termios syscall.Termios
 	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, uintptr(syscall.TIOCGETA), uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
 	return err == 0
 }
 
+// TtyReady checks if the tty is ready to go
 func TtyReady() error {
 	return nil
 }
 
+// TtyTerm restores any state, if necessary
 func TtyTerm() {
 }
diff --git a/tty_posix.go b/tty_posix.go
index e67711f..a4a7bde 100644
--- a/tty_posix.go
+++ b/tty_posix.go
@@ -7,15 +7,18 @@ import (
 	"unsafe"
 )
 
+// IsTty checks if the given fd is a tty
 func IsTty(fd uintptr) bool {
 	var termios syscall.Termios
 	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, uintptr(syscall.TCGETS), uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
 	return err == 0
 }
 
+// TtyReady checks if the tty is ready to go
 func TtyReady() error {
 	return nil
 }
 
+// TtyTerm restores any state, if necessary
 func TtyTerm() {
 }
diff --git a/tty_windows.go b/tty_windows.go
index 4da3f1e..8e144e6 100644
--- a/tty_windows.go
+++ b/tty_windows.go
@@ -28,6 +28,7 @@ func setStdHandle(stdhandle int32, handle syscall.Handle) error {
 	return nil
 }
 
+// IsTty checks if the given fd is a tty
 func IsTty(fd uintptr) bool {
 	f := syscall.MustLoadDLL("kernel32.dll").MustFindProc("GetConsoleMode")
 	var st uint32
@@ -38,6 +39,7 @@ func IsTty(fd uintptr) bool {
 var stdout = os.Stdout
 var stdin = os.Stdin
 
+// TtyReady checks if the tty is ready to go
 func TtyReady() error {
 	var err error
 	_stdin, err := os.Open("CONIN$")
@@ -69,6 +71,7 @@ func TtyReady() error {
 	return nil
 }
 
+// TtyTerm restores any state, if necessary
 func TtyTerm() {
 	os.Stdin = stdin
 	syscall.Stdin = syscall.Handle(os.Stdin.Fd())