Date: Fri, 7 Apr 2017 17:31:43 +0200 From: freebsd@casidy.com To: freebsd-questions@freebsd.org Subject: Liberate the serial port Message-ID: <a169e531-a4cf-8ab3-12a3-ccd25a807cc3@casidy.com> In-Reply-To: <mailman.0.1491578264.453.freebsd-questions@freebsd.org> References: <mailman.0.1491578264.453.freebsd-questions@freebsd.org>
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Hi, I have a Raspberry Pi2 and I am struggling at using the serial port uart0 for my own purpose. I have install 11.0-RELEASE-p1 a few months ago and now I have attached a device that send characters on the Raspberry uart0 and I try to read them by a setting the tty stty -f /dev/ttyu0 1200 sane evenp parenb cs7 -crtscts trying to read cat /dev/ttyu0 or cat < /dev/ttyu0 But my understanding is that the kernel at some point grabbed uart0 to provide a serial console. I tried to change /etc/ttys ttyu0 "/usr/libexec/getty 3wire.115200" vt100 off secure but no avail, I have nothing while trying to cat /dev/ttyu0. I tried with Raspbian, and after disabling the use of the uart as a console on boot, I have been able to get my characters... so the hardware works fine. How can I use my serial port for another purpose than a serial console? What am I missing? Thanks in advance, Philippe
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