From: Wolfram Sang <w.sang@pengutronix.de>
To: Tomas Lastovicka <tomas.lastovicka@gmail.com>
Cc: linux-serial@vger.kernel.org
Subject: Re: RS-485 automatic RTS toggle in Linux (on Winbond W83627UHG)
Date: Tue, 29 Nov 2011 23:36:26 +0100 [thread overview]
Message-ID: <20111129223626.GB12314@pengutronix.de> (raw)
In-Reply-To: <CAFnDbmA1u041X4LQv0pbdAAoR=LBqgdmOGRj_J5MhA2euMKFOw@mail.gmail.com>
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On Tue, Nov 29, 2011 at 05:25:32PM -0500, Tomas Lastovicka wrote:
> Then i definitely have a different datasheet (v1.41). No 485 matches were found.
I got v1.7:
http://www.nuvoton.com/NuvotonMOSS/Community/ProductInfo.aspx?tp_GUID=8310ab06-af65-4ec9-92a6-17cf791aa9f2
Ah, it says RS485 is only available on Revision E. Hopefully, you have that.
> Indeed, if it has support then there is no need for software toggle
> (although i still think it is done this way in the Etrax driver coming
> with the kernel).
I think that was the first RS485 one, so probably just lucky ;)
If you are interested, another series adding support for 8250-variants that
have HW support can be found here:
http://lkml.org/lkml/2011/11/16/270
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2011-11-29 22:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-29 17:20 RS-485 automatic RTS toggle in Linux (on Winbond W83627UHG) Tomas Lastovicka
2011-11-29 17:57 ` Wolfram Sang
2011-11-29 22:13 ` Tomas Lastovicka
2011-11-29 22:20 ` Wolfram Sang
2011-11-29 22:25 ` Tomas Lastovicka
2011-11-29 22:36 ` Wolfram Sang [this message]
2011-11-29 23:15 ` Tomas Lastovicka
2011-12-07 11:58 ` Tomas Lastovicka
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