Date: Tue, 18 Apr 2023 05:32:50 -0700 From: Gary Aitken <freebsd@dreamchaser.org> To: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: serial from usb port, cu using /dev/cuau0 Message-ID: <2a149c85-7aa3-c92c-0518-219d52971453@dreamchaser.org>
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Connected a USB to serial dongle to a USB port, then a straight-through serial cable to my dsl modem. as root: cu -h -t -s 9600 -l /dev/cuau0 or maybe cuaU0 Whether anything is connected to the USB port or not, when I issue the cu command, I always get a "connected" response. On one occasion two days ago, I swear the cu connected to the usb-serial and I got a login prompt and poked around the modem. Assuming that actually happened, how does the system know which usb / serial port to use? This mobo has a serial port with a dongle connected. It appears to be activated in BIOS, as when I direct connect the serial cable to it I get a connection to the modem. But I'm confused as to how I got it to work from a usb port. Thanks for any insights, Gary
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