[PATCH v2] ioctl_tty.2: Document ioctls: TCGETS2, TCSETS2, TCSETSW2, TCSETSF2

From: "Pali Rohár" <pali@kernel.org>
To: linux-man@vger.kernel.org,
	Alejandro Colomar <alx.manpages@gmail.com>,
	Michael Kerrisk <mtk.manpages@gmail.com>
Cc: "Marek Behún" <kabel@kernel.org>, libc-alpha@sourceware.org
Subject: [PATCH v2] ioctl_tty.2: Document ioctls: TCGETS2, TCSETS2, TCSETSW2, TCSETSF2
Date: Fri, 30 Jul 2021 12:48:03 +0200	[thread overview]
Message-ID: <20210730104803.10328-1-pali@kernel.org> (raw)
In-Reply-To: <20210725225506.7404-1-pali@kernel.org>

Signed-off-by: Pali Rohár <pali@kernel.org>

---
Changes in v2:
* Remove information about asm/termbits.h (will be in followup patch)
* Style fixes
---
 man2/ioctl_tty.2 | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/man2/ioctl_tty.2 b/man2/ioctl_tty.2
index 2a0effdae8ab..c1875530f0b1 100644
--- a/man2/ioctl_tty.2
+++ b/man2/ioctl_tty.2
@@ -77,6 +77,35 @@ The following four ioctls are just like
 .BR TCSETSW ,
 .BR TCSETSF ,
 except that they take a
+.I "struct termios2\ *"
+instead of a
+.IR "struct termios\ *" .
+If struct member
+.B c_cflag
+contains
+.B BOTHER
+then baudrate is stored in struct members
+.B c_ispeed
+and
+.B c_ospeed
+as integer values.
+These ioctls are not supported on all architectures.
+.RS
+.TS
+lb l.
+TCGETS2	\fBstruct termios2 *\fPargp
+TCSETS2	\fBconst struct termios2 *\fPargp
+TCSETSW2	\fBconst struct termios2 *\fPargp
+TCSETSF2	\fBconst struct termios2 *\fPargp
+.TE
+.RE
+.PP
+The following four ioctls are just like
+.BR TCGETS ,
+.BR TCSETS ,
+.BR TCSETSW ,
+.BR TCSETSF ,
+except that they take a
 .I "struct termio\ *"
 instead of a
 .IR "struct termios\ *" .
-- 
2.20.1

