I see multiple Kingdel Fanless Mini-desktop computers on Amazon, usually with Windows 10. Have you tried looking at the Kingdel site to see if they provide drivers to use with the device on Linux? Possibly Kingdel got creative with the hardware they use to run the serial ports and generic Linux doesn't recognize the hardware? Just a guess. I'd expect Linux to recognize anything that was remotely normal hardware. Doug. On 2/21/20, tclug-list-request at mn-linux.org <tclug-list-request at mn-linux.org> wrote: > Send tclug-list mailing list submissions to > tclug-list at mn-linux.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > or, via email, send a message with subject or body 'help' to > tclug-list-request at mn-linux.org > > You can reach the person managing the list at > tclug-list-owner at mn-linux.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of tclug-list digest..." > > > Today's Topics: > > 1. usb com ports (admin at lctn.org) > 2. Re: usb com ports (Iznogoud) > 3. Re: usb com ports (admin at lctn.org) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 21 Feb 2020 08:45:54 -0600 (CST) > From: admin at lctn.org > To: tclug-list <tclug-list at mn-linux.org> > Subject: [tclug-list] usb com ports > Message-ID: <952639221.40745.1582296354063.JavaMail.zimbra at lctn.org> > Content-Type: text/plain; charset="utf-8" > > I have a little kingdel box that has 5 actual, 9 pin serial ports. I am > working with arduino and need my active usb port to show up as a com port, > but it doesn't. > > ls /dev/tty* does not list any usb devices. Is there a way to make the usb > port a com port in this case? > > Ubuntu 18.04.3 LTS > > Raymond Norton > LCTN > 952.955.7766 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20200221/9367fd00/attachment-0001.htm> > > ------------------------------ > > Message: 2 > Date: Fri, 21 Feb 2020 17:34:48 +0000 > From: Iznogoud <iznogoud at nobelware.com> > To: TCLUG Mailing List <tclug-list at mn-linux.org> > Subject: Re: [tclug-list] usb com ports > Message-ID: <20200221173448.GA20285 at nobelware.com> > Content-Type: text/plain; charset=us-ascii > >> >> I have a little kingdel box that has 5 actual, 9 pin serial ports. I am >> working with arduino and need my active usb port to show up as a com port, >> but it doesn't. >> > > Not particularly clear on what this means, where the USB is, etc. But, if > you > are going USB-serial with an FTDi based chip (on the cable), Linux will see > it immediately as a "COM port" and setup a /dev/ttySx for it. (The device > permissions will be as the distro decides, etc.) > >> ls /dev/tty* does not list any usb devices. Is there a way to make the usb >> port a com port in this case? >> > > USB ports cannot just act as COM ports. They need the kernel to treat > whatever is attached to that USB port as a device with an associated driver. > If you plug a USB device to a running Linux kernel it will find it, and if > it is a healthy one it should show up with 'lsusb', like this: > > iznogoud% lsusb > Bus 002 Device 002: ID 0bda:0328 Realtek Semiconductor Corp. > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 001 Device 006: ID 413c:2011 Dell Computer Corp. Multimedia Pro Keyboard > Bus 001 Device 004: ID 413c:1005 Dell Computer Corp. Multimedia Pro Keyboard > Hub > Bus 001 Device 007: ID 0424:4060 Standard Microsystems Corp. Ultra Fast > Media Reader > Bus 001 Device 005: ID 0424:2640 Standard Microsystems Corp. USB 2.0 Hub > Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub > Bus 001 Device 002: ID 0461:4d51 Primax Electronics, Ltd 0Y357C PMX-MMOCZUL > (B) [Dell Laser Mouse] > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > iznogoud% > > > > ------------------------------ > > Message: 3 > Date: Fri, 21 Feb 2020 11:48:08 -0600 (CST) > From: admin at lctn.org > To: iznogoud at nobelware.com, tclug-list <tclug-list at mn-linux.org> > Subject: Re: [tclug-list] usb com ports > Message-ID: <1345213618.40917.1582307288399.JavaMail.zimbra at lctn.org> > Content-Type: text/plain; charset=utf-8 > > On my laptop, if I connect a USB cable to an arduino board, it shows up as a > com port under arduino tools. On the Kingdel, it does not. Of course the > laptop does not have any actual serial ports-just the usb port. > > > > ----- Original Message ----- > From: "Iznogoud" <iznogoud at nobelware.com> > To: "tclug-list" <tclug-list at mn-linux.org> > Sent: Friday, February 21, 2020 11:34:48 AM > Subject: Re: [tclug-list] usb com ports > >> >> I have a little kingdel box that has 5 actual, 9 pin serial ports. I am >> working with arduino and need my active usb port to show up as a com port, >> but it doesn't. >> > > Not particularly clear on what this means, where the USB is, etc. But, if > you > are going USB-serial with an FTDi based chip (on the cable), Linux will see > it immediately as a "COM port" and setup a /dev/ttySx for it. (The device > permissions will be as the distro decides, etc.) > >> ls /dev/tty* does not list any usb devices. Is there a way to make the usb >> port a com port in this case? >> > > USB ports cannot just act as COM ports. They need the kernel to treat > whatever is attached to that USB port as a device with an associated driver. > If you plug a USB device to a running Linux kernel it will find it, and if > it is a healthy one it should show up with 'lsusb', like this: > > iznogoud% lsusb > Bus 002 Device 002: ID 0bda:0328 Realtek Semiconductor Corp. > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 001 Device 006: ID 413c:2011 Dell Computer Corp. Multimedia Pro Keyboard > Bus 001 Device 004: ID 413c:1005 Dell Computer Corp. Multimedia Pro Keyboard > Hub > Bus 001 Device 007: ID 0424:4060 Standard Microsystems Corp. Ultra Fast > Media Reader > Bus 001 Device 005: ID 0424:2640 Standard Microsystems Corp. USB 2.0 Hub > Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub > Bus 001 Device 002: ID 0461:4d51 Primax Electronics, Ltd 0Y357C PMX-MMOCZUL > (B) [Dell Laser Mouse] > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > iznogoud% > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > ------------------------------ > > End of tclug-list Digest, Vol 182, Issue 17 > ******************************************* > -- I vote the Second Amendment FIRST! The things they do not tell you are usually the clue to solving the problem.