From 7b588b57b39a35a00bad55f60a42bc2e12db101b Mon Sep 17 00:00:00 2001
From: auronandace <auronandace@googlemail.com>
Date: Thu, 4 Jun 2026 08:12:40 +0100
Subject: [PATCH] update TIOCGPTN comment

---
 src/header/sys_ioctl/constants.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/header/sys_ioctl/constants.rs b/src/header/sys_ioctl/constants.rs
index 8849a7ce0d..a4608516d3 100644
--- a/src/header/sys_ioctl/constants.rs
+++ b/src/header/sys_ioctl/constants.rs
@@ -55,7 +55,8 @@ pub const TIOCSPTLCK: c_ulong = 0x4004_5431;
 /// location pointed to by `lock`.
 pub const TIOCGPTLCK: c_ulong = 0x8004_5439;
 
-// Get the name of the PT as a c_int.
+/// Obtain device unit number, which can be used to generate the filename of
+/// the pseudo-terminal slave device.
 pub const TIOCGPTN: c_ulong = 0x8004_5430;
 /// POSIX `sockatmark()` from `sys/socket.h` is intended to replace this.
 pub const SIOCATMARK: c_ulong = 0x8905;