From: "Theodore Y. Ts'o" <tytso@mit.edu>
To: Muni Sekhar <munisekharrms@gmail.com>
Cc: linux-serial <linux-serial@vger.kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: serial: custom baud rate
Date: Fri, 4 May 2018 09:59:04 -0400 [thread overview]
Message-ID: <20180504135904.GJ29205@thunk.org> (raw)
In-Reply-To: <CAHhAz+iiv+h+RAPXACQuJRiEQmE1jxeS7+qaz-8fu30Fm9tNaw@mail.gmail.com>
On Fri, May 04, 2018 at 02:34:51PM +0530, Muni Sekhar wrote:
> > See the setserial man page:t
> >
> > https://linux.die.net/man/8/setserial
> >
> > Not all serial devices support the spd_cust and divisor, however. In
> > general, only devices where the kernel directly programs the
> > 8250/16450/16550 UART directly will support this feature.
> >
> So custom baud's can be set via TIOCSSERIAL IOCtl in kernel mode?
ioctl's are in general designed for use in userspace. So are the
termios interface.
- Ted
next prev parent reply other threads:[~2018-05-04 13:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-03 12:39 serial: custom baud rate Muni Sekhar
2018-05-03 17:54 ` Theodore Y. Ts'o
2018-05-04 9:04 ` Muni Sekhar
2018-05-04 13:59 ` Theodore Y. Ts'o [this message]
2018-05-14 17:24 ` Andy Shevchenko
2018-05-03 18:27 ` Grant Edwards
2018-05-13 19:57 ` Alan Cox
2018-05-14 15:36 ` Grant Edwards
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