From: Sergey Lapin <slapin@ossfans.org>
To: linux-serial@vger.kernel.org
Subject: Interface for setting half-duplex transmitter mode
Date: Wed, 6 Aug 2008 23:25:19 +0400 [thread overview]
Message-ID: <20080806192519.GB21558@fan.ossfans.org> (raw)
Hi, all!
Is there any interface API for userspace, which I could use
to set RS-485 mode on UART (which suports it via hardware, by setting 1
bit in configuration), which means half-duplex mode with RTS line
toggling. Now I have it hard-coded for appropriate UART,
and seen patch which sets this from platform data, but
is there some API to do it dynamically?
I know I could implement this by ioctl mechanism, but
I need some non-standard ioctl number for that. Is there
some sane way to accomplish my goals? I mean one which be accepted to
mainline?
Thanks a lot,
S.
next reply other threads:[~2008-08-06 19:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-06 19:25 Sergey Lapin [this message]
2008-08-06 21:38 ` Interface for setting half-duplex transmitter mode Grant Edwards
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