Date: Tue, 19 Mar 2019 19:39:07 +0100 From: Polytropon <freebsd@edvax.de> To: Andrea Venturoli <ml@netfence.it> Cc: freebsd-questions@freebsd.org Subject: Re: Resetting a serial port Message-ID: <20190319193907.b0f51931.freebsd@edvax.de> In-Reply-To: <6623dd04-822d-dbdb-d2f5-3021debc1c2a@netfence.it> References: <6623dd04-822d-dbdb-d2f5-3021debc1c2a@netfence.it>
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On Tue, 19 Mar 2019 17:57:41 +0100, Andrea Venturoli wrote: > I've got a box connected to an hardware device through a serial port. > This is a real RS-232 on the motherboard, not an USB adapter. > > From time to time, the serial port will got stuck and stop > communicating with the device. > This is not a problem with the device, as powering it on and off won't > help. Instead rebooting the whole FreeBSD server will solve. I have successfully done this with a parallel port (a _real_ one, not an USB adapter): # /usr/bin/true > /dev/lpt0 Maybe the corresponding serial device can be reset in the same way? -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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