From: "Raphaël Assénat" <raph@8d.com>
To: linux-omap@vger.kernel.org
Subject: [RFC PATCH 0/2] omap-serial: A way to implement modem lines through GPIO
Date: Thu, 11 Aug 2011 15:46:53 -0400 [thread overview]
Message-ID: <4E4431AD.4070305@8d.com> (raw)
Hello,
At least in the am3505/3517 CPUs, the built-in uarts only expose the
RX/TX/RTS/CTS signals. Other signals such as DTR/DSR/RI and DCD,
while very useful when controlling a modem, are not available.
My design has the above mentioned extra signals wired to GPIOs.
Controlling them through sysfs is possible, but not convenient as I
needed the standard serial port ioctls to work.
There did not seem to be anything in place to do this so I've come up
with the following two patches which I am using for now.
What do you think? Is there a simpler, more obvious solution?
Did anyone attempt doing something to attain a similar goal in the past?
Best regards,
Raphaël Assénat
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reply other threads:[~2011-08-11 19:47 UTC|newest]
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