Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    APU set up with Wi-Fi

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    118 Posts 9 Posters 31.7k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • JeGrJ
      JeGr LAYER 8 Moderator
      last edited by

      @stephen: Or at least every serial console I've ever used required a null modem cable.
      @forbiddenlage: yes you do

      Guys please. I don't want to argue, but give me the benefit of the doubt. And read what I wrote:

      What you need to actually see the output of your APU in case sth goes wrong is a "Serial Console cable".
      -> That is per se known as null modem cable.

      What you can use if you don't have a serial port on your PC or notebook is a USB to serial port adapter
      -> That is the one you are arguing over, that it needs some converter/adapter.

      Why? You take that stupid USB2Serial thing, plug it in, and take your console cable and plug it into the converter (that's what it is, a converter) and your board (WRAP, ALIX, APU, Lanner, whatever). So please give me the point that I know what I'm doing. I didn't mention any "strange" f2f or other adapters because the TS already seemed awfully confused over the nature of a console port in difference of a VGA port. And because me personally don't like any strange f2m/m2m/f2f adapters as they are - in most cases - calling for errors or strange happenings.

      That's why I was suggesting going the classic route by using a standard 9port console/nullmodem cable and a usb2serial adapter.

      Let's agree we all talk about the same and stop irritating the TS and other readers from this topic to buy any strange adapters or converters that perhaps won't function the way they want. OK? :D

      Cheers

      Don't forget to upvote 👍 those who kindly offered their time and brainpower to help you!

      If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

      1 Reply Last reply Reply Quote 0
      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        I agree we are talking the same thing.  :) We must be since all three of us have used a console cable and are aware of what's required.

        Reading back through it I can see where the confusion started. Forbiddenlake said you need an adapter as well as a USB-Serial converter, which is true you do. You had already stated you need a console cable which is the same thing. However you then wrote 'no you don't' meaning you don't need the adapter as well as the console cable. I then misinterpreted that as you saying you don't need any sort of adapter.  ::)

        Anyway just to be clear you need a null-modem cable also known as a console cable (the null-modem adapter is the same thing but shorter) and, if you don't have a serial port, you need a USB-serial converter.

        Steve

        1 Reply Last reply Reply Quote 0
        • JeGrJ
          JeGr LAYER 8 Moderator
          last edited by

          Agreed :D

          Don't forget to upvote 👍 those who kindly offered their time and brainpower to help you!

          If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

          1 Reply Last reply Reply Quote 0
          • E
            eiger3970
            last edited by

            The Serial-USB and serial female-serial female cables arrived.
            Micro SD 4GB card with the pfSense-2.1.2-RELEASE-4g-amd64-nanobsd-20140410-0542.img downloaded onto it,
            I bought a 12V 1.5A power supply but no power to ALU?
            Specs/tutorial for building the APU say a power supply of 1 - 2 Amps should be fine.

            Plugged serial-USB cable into
            serial female-serial-female to ALU serial male port and into
            computer's USB port, but computer recognises no USB?

            Ok, tested power supply using a multimeter.
            Red cable plugged into VOhmmA
            Black cable plugged into COM.
            Yellow dial turned to 750 V AC.

            Black cable pushed into the inside of the 2.5mm power supply connector (positive).
            Red cable touching the outside of the 2.5mm power supply connector (negative).
            Multimeter result: HV 026.

            Red cable pushed into the inside of the 2.5mm power supply connector (positive).
            Black cable touching the outside of the 2.5mm power supply connector (negative).
            Multimeter result: HV 000.

            1 Reply Last reply Reply Quote 0
            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Your power supply is almost certainly fine. To test the output with a multimeter you need to be on the correct range (if it's not auto-ranging). The '750V AC' setting is for measuring high voltage AC, such as the Volts at a wall socket. To measure the PSU, which is 12V DC, you need a low voltage DC setting. Typically that would be 20V DC or sometimes written 19V DC since the display can only read to 19.99V.
              The output plug of the PSU is usually 'centre positive' so the red lead should go down the center of the connector.

              Do you have links to the actual cables you bought?
              If the computer is not detecting the USB cable then it can't work. What OS is running on the terminal computer?

              Steve

              1 Reply Last reply Reply Quote 0
              • E
                eiger3970
                last edited by

                Thanks for the help.

                Multimeter yellow dial set to 20V.

                Black cable pushed into the inside of the 2.5mm power supply connector (positive).
                Red cable touching the outside of the 2.5mm power supply connector (negative).
                Multimeter result: 12.1.

                Red cable pushed into the inside of the 2.5mm power supply connector (positive).
                Black cable touching the outside of the 2.5mm power supply connector (negative).
                Multimeter result: - 12.1.

                Serial female to female cable.

                Serial male to USB.

                So yes, it seems the power supply is working.
                No life at all on the APU?
                Maybe the APU needs a trick like connecting an Ethernet cable or powering up and then putting the microSD card in the APU?

                1 Reply Last reply Reply Quote 0
                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  Ok, check the leads at the multimeter end. The black lead is definitely in the COM connector and the red lead in the ' VOhmmA' connector?

                  Just as an aside here, I'm not sure how familiar with meters you are, do not put the red lead in the other connector, usually marked '10A', unless you know what you're doing. It's so very easy to kill powersupplies doing that!  ;)

                  If the leads are correct then it looks like your power supply is wired 'centre negative' which is incorrect:

                  @http://pcengines.ch/apu1c.htm:

                  12V DC, about 6 to 12W depending on CPU load. Jack = 2.5 mm, center positive

                  Maybe you typo'd the results? Where did you source the PSU?

                  Steve

                  1 Reply Last reply Reply Quote 0
                  • E
                    eiger3970
                    last edited by

                    So
                    the power supply cable tip had the negative cable end with the 2.5mm metal positive.
                    the power supply cable tip had the positive cable end with the 2.5mm metal negative.

                    I changed
                    the power supply cable tip with the negative end with the 2.5mm metal negative.
                    The power supply cable tip with the positive end with the 2.5mm metal positive.

                    Black cable pushed into the inside of the 2.5mm power supply connector (positive).
                    Red cable touching the outside of the 2.5mm power supply connector (negative).
                    Multimeter result: -12.13.

                    Red cable pushed into the inside of the 2.5mm power supply connector (positive).
                    Black cable touching the outside of the 2.5mm power supply connector (negative).
                    Multimeter result: 12.13.

                    The ALU now shows a green LED light on the MOBO D7, D10 and D11.

                    The computer isn't showing any recognition of a USB connection.
                    My OS is Linux Mint 16 Mate 64-bit.

                    1 Reply Last reply Reply Quote 0
                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      You'll have to check the logs in Mint to see what it made of the cable. It could be some obscure converter chip.

                      Steve

                      1 Reply Last reply Reply Quote 0
                      • E
                        eiger3970
                        last edited by

                        Ok, not sure how to find logs on Linux Mint 16.
                        I went to /var/log, but nothing really re USBs?

                        I'm wondering if the MicroSD card is causing the pfSense OS to somehow not load and 'awaken' the USB port?
                        The MicroSD card has pfSense-2.1.2-RELEASE-4g-amd64-nanobsd-20140410-0542.img on it.
                        I downloaded this file from pfSense download
                          > Computer Architecture: AMD64 (64-bit) > Platform: Embedded (NanoBSD) typically with CF > Console: Serial > CF card size: 4GB.

                        1 Reply Last reply Reply Quote 0
                        • BBcan177B
                          BBcan177 Moderator
                          last edited by

                          Logs are usually in the /var/log directory

                          "Experience is something you don't get until just after you need it."

                          Website: http://pfBlockerNG.com
                          Twitter: @BBcan177  #pfBlockerNG
                          Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                          1 Reply Last reply Reply Quote 0
                          • BBcan177B
                            BBcan177 Moderator
                            last edited by

                            USB logs should be in /var/log/messages

                            You can run a tail -f /var/log/messages which is a live display of the log. Or use a cat or vi command to see the log

                            "Experience is something you don't get until just after you need it."

                            Website: http://pfBlockerNG.com
                            Twitter: @BBcan177  #pfBlockerNG
                            Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                            1 Reply Last reply Reply Quote 0
                            • E
                              eiger3970
                              last edited by

                              Thanks for the suggestions.

                              /var/log has no directory or file names messages?

                              Just these ones:

                              
/var/log $ ls
alternatives.log       auth.log.4.gz  dpkg.log        kern.log.2.gz          pm-powersave.log.3.gz  teamviewer
alternatives.log.1     boot.log       dpkg.log.1      kern.log.3.gz          pm-powersave.log.4.gz  udev
alternatives.log.2.gz  bootstrap.log  dpkg.log.2.gz   kern.log.4.gz          pycentral.log          ufw.log
alternatives.log.3.gz  btmp           dpkg.log.3.gz   lastlog                samba                  unattended-upgrades
alternatives.log.4.gz  btmp.1         dpkg.log.4.gz   mail.err               speech-dispatcher      upstart
alternatives.log.5.gz  ConsoleKit     dpkg.log.5.gz   mail.log               syslog                 vbox-install.log
apt                    cups           faillog         mdm                    syslog.1               wtmp
aptitude               dmesg          fontconfig.log  mintsystem.log         syslog.2.gz            wtmp.1
aptitude.1.gz          dmesg.0        fsck            mintUpdate.history     syslog.3.gz            Xorg.0.log
auth.log               dmesg.1.gz     hp              news                   syslog.4.gz            Xorg.0.log.old
auth.log.1             dmesg.2.gz     installer       pm-powersave.log       syslog.5.gz            Xorg.20.log
auth.log.2.gz          dmesg.3.gz     kern.log        pm-powersave.log.1     syslog.6.gz            Xorg.20.log.old
auth.log.3.gz          dmesg.4.gz     kern.log.1      pm-powersave.log.2.gz  syslog.7.gz
                              1 Reply Last reply Reply Quote 0
                              • BBcan177B
                                BBcan177 Moderator
                                last edited by

                                Try dmesg | grep -i usb

                                "Experience is something you don't get until just after you need it."

                                Website: http://pfBlockerNG.com
                                Twitter: @BBcan177  #pfBlockerNG
                                Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                                1 Reply Last reply Reply Quote 0
                                • E
                                  eiger3970
                                  last edited by

                                  Results are:

                                  
/var/log $ dmesg | grep -i usb
[    0.116162] ACPI: bus type USB registered
[    0.116175] usbcore: registered new interface driver usbfs
[    0.116181] usbcore: registered new interface driver hub
[    0.116199] usbcore: registered new device driver usb
[    0.554559] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.554638] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 1
[    0.568048] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[    0.568070] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    0.568071] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.568073] usb usb1: Product: EHCI Host Controller
[    0.568074] usb usb1: Manufacturer: Linux 3.11.0-12-generic ehci_hcd
[    0.568075] usb usb1: SerialNumber: 0000:00:1a.0
[    0.568145] hub 1-0:1.0: USB hub found
[    0.568273] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 2
[    0.584052] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[    0.584067] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[    0.584069] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.584070] usb usb2: Product: EHCI Host Controller
[    0.584072] usb usb2: Manufacturer: Linux 3.11.0-12-generic ehci_hcd
[    0.584073] usb usb2: SerialNumber: 0000:00:1d.0
[    0.584127] hub 2-0:1.0: USB hub found
[    0.584186] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.584191] uhci_hcd: USB Universal Host Controller Interface driver
[    0.584239] xhci_hcd 0000:04:00.0: new USB bus registered, assigned bus number 3
[    0.584432] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[    0.584434] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.584435] usb usb3: Product: xHCI Host Controller
[    0.584437] usb usb3: Manufacturer: Linux 3.11.0-12-generic xhci_hcd
[    0.584438] usb usb3: SerialNumber: 0000:04:00.0
[    0.584492] hub 3-0:1.0: USB hub found
[    0.584545] xhci_hcd 0000:04:00.0: new USB bus registered, assigned bus number 4
[    0.584564] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[    0.584566] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.584567] usb usb4: Product: xHCI Host Controller
[    0.584568] usb usb4: Manufacturer: Linux 3.11.0-12-generic xhci_hcd
[    0.584570] usb usb4: SerialNumber: 0000:04:00.0
[    0.584618] hub 4-0:1.0: USB hub found
[    0.882942] usb 1-1: new high-speed USB device number 2 using ehci-pci
[    1.024631] usb 1-1: New USB device found, idVendor=8087, idProduct=0024
[    1.024636] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.024905] hub 1-1:1.0: USB hub found
[    1.136210] usb 2-1: new high-speed USB device number 2 using ehci-pci
[    1.268694] usb 2-1: New USB device found, idVendor=8087, idProduct=0024
[    1.268699] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.268976] hub 2-1:1.0: USB hub found
[    1.340309] usb 1-1.6: new low-speed USB device number 3 using ehci-pci
[    1.436570] usb 1-1.6: New USB device found, idVendor=04f3, idProduct=0230
[    1.436572] usb 1-1.6: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    1.436573] usb 1-1.6: Product: USB+PS/2 Optical Mouse
[    1.539296] usbcore: registered new interface driver usbhid
[    1.539298] usbhid: USB HID core driver
[    1.604101] input: USB+PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input3
[    1.604186] hid-generic 0003:04F3:0230.0001: input,hidraw0: USB HID v1.11 Mouse [USB+PS/2 Optical Mouse] on usb-0000:00:1a.0-1.6/input0
[ 9232.342528] usb 2-1.2: new full-speed USB device number 3 using ehci-pci
[ 9232.436085] usb 2-1.2: New USB device found, idVendor=1a86, idProduct=7523
[ 9232.436090] usb 2-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 9232.436093] usb 2-1.2: Product: USB2.0-Ser!
[ 9232.460808] usbcore: registered new interface driver usbserial
[ 9232.460826] usbcore: registered new interface driver usbserial_generic
[ 9232.460839] usbserial: USB Serial support registered for generic
[ 9232.463155] usbcore: registered new interface driver ch341
[ 9232.463175] usbserial: USB Serial support registered for ch341-uart
[ 9232.466347] usb 2-1.2: ch341-uart converter now attached to ttyUSB0
[14756.388091] usb 2-1.2: USB disconnect, device number 3
[14756.388293] ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0
[14757.476486] usb 1-1.6: USB disconnect, device number 3
[14757.716443] usb 1-1.6: new low-speed USB device number 4 using ehci-pci
[14757.812687] usb 1-1.6: New USB device found, idVendor=04f3, idProduct=0230
[14757.812692] usb 1-1.6: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[14757.812695] usb 1-1.6: Product: USB+PS/2 Optical Mouse
[14757.815407] input: USB+PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input11
[14757.815597] hid-generic 0003:04F3:0230.0002: input,hidraw0: USB HID v1.11 Mouse [USB+PS/2 Optical Mouse] on usb-0000:00:1a.0-1.6/input0
[14757.884482] usb 2-1.4: new full-speed USB device number 4 using ehci-pci
[14757.977730] usb 2-1.4: New USB device found, idVendor=1a86, idProduct=7523
[14757.977735] usb 2-1.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[14757.977739] usb 2-1.4: Product: USB2.0-Ser!
[14757.980085] usb 2-1.4: ch341-uart converter now attached to ttyUSB0

                                  Maybe the memory card doesn't work?
                                  I think the APU is supposed to have a Compact Flash 4GB card, but I have a MicroSD card 4GB?

                                  1 Reply Last reply Reply Quote 0
                                  • E
                                    eiger3970
                                    last edited by

                                    So, just ordered a new Serial female to female adaptor, in case the current serial female to female cable is faulty.

                                    I also removed the APU's microSD 8GB card > placed the microSD 8GB card into the memory card reader > placed the memory card reader into the computer's USB > opened the microSD 8GB card's folder > unzipped pfSense-2.1.2-RELEASE-4g-amd64-nanobsd.img.gz > deleted pfSense-2.1.2-RELEASE-4g-amd64-nanobsd.img.gz > kept the unzipped file pfSense-2.1.2-RELEASE-4g-amd64-nanobsd-20140410-0542.img > ejected the memory card reader > removed the microSD 8GB card from the memory card reader > placed the microSD 8GB card into the APU > powered on the APU > connected the APU into my computer's USB port > the computer is still not recognising any USB from the APU (the computer recognises other USB devices ok).

                                    I also tried the APU USB cable in another computer which recognised no USB when plugged into the 2nd computer.

                                    1 Reply Last reply Reply Quote 0
                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      Neither that adapter or the cable you linked to earlier are null-modem cables which is what you need. Something like this:
                                      http://www.ebay.com.au/itm/1-5m-Serial-RS232-Null-Modem-Cable-Female-to-Female-DB9-FTA-DB9F-F-/161195465404?pt=AU_CablesConnectors&hash=item2587ff9abc

                                      I assume you're in Australia. :)

                                      Try looking at the syslog in Mint:

                                      cat /var/log/syslog|grep usb

                                      or tail it whilst you plug in the cable:

                                      tail -f /var/log/syslog

                                      Steve

                                      1 Reply Last reply Reply Quote 0
                                      • E
                                        eiger3970
                                        last edited by

                                        Thank you for the reply.

                                        Forgive my ignorance, but what is the difference between the
                                        null-modem cable and the
                                        serial female to female cable I bought or the
                                        serial female to female adaptor I bought?

                                        Not quite sure what I'm looking for with the below commands.
                                        I have included the output if it helps check the USB with the APU cable plugged in.

                                        
$ cat /var/log/syslog | grep usb
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.342528] usb 2-1.2: new full-speed USB device number 3 using ehci-pci
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.436085] usb 2-1.2: New USB device found, idVendor=1a86, idProduct=7523
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.436090] usb 2-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.436093] usb 2-1.2: Product: USB2.0-Ser!
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2"
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.460808] usbcore: registered new interface driver usbserial
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.460826] usbcore: registered new interface driver usbserial_generic
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.460839] usbserial: USB Serial support registered for generic
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.463155] usbcore: registered new interface driver ch341
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.463175] usbserial: USB Serial support registered for ch341-uart
May 16 11:20:26 linuxmint-Z68MA-D2H-B3 kernel: [ 9232.466347] usb 2-1.2: ch341-uart converter now attached to ttyUSB0
May 16 12:52:29 linuxmint-Z68MA-D2H-B3 kernel: [14756.388091] usb 2-1.2: USB disconnect, device number 3
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.476486] usb 1-1.6: USB disconnect, device number 3
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.716443] usb 1-1.6: new low-speed USB device number 4 using ehci-pci
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.812687] usb 1-1.6: New USB device found, idVendor=04f3, idProduct=0230
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.812692] usb 1-1.6: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.812695] usb 1-1.6: Product: USB+PS/2 Optical Mouse
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.815407] input: USB+PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input11
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.815597] hid-generic 0003:04F3:0230.0002: input,hidraw0: USB HID v1.11 Mouse [USB+PS/2 Optical Mouse] on usb-0000:00:1a.0-1.6/input0
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6"
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.884482] usb 2-1.4: new full-speed USB device number 4 using ehci-pci
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.977730] usb 2-1.4: New USB device found, idVendor=1a86, idProduct=7523
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.977735] usb 2-1.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.977739] usb 2-1.4: Product: USB2.0-Ser!
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 kernel: [14757.980085] usb 2-1.4: ch341-uart converter now attached to ttyUSB0
May 16 12:52:30 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4"
May 16 16:08:16 linuxmint-Z68MA-D2H-B3 kernel: [26507.052035] usb 2-1.4: USB disconnect, device number 4
May 16 16:08:17 linuxmint-Z68MA-D2H-B3 kernel: [26507.350341] usb 2-1.4: new full-speed USB device number 5 using ehci-pci
May 16 16:08:17 linuxmint-Z68MA-D2H-B3 kernel: [26507.443614] usb 2-1.4: New USB device found, idVendor=1a86, idProduct=7523
May 16 16:08:17 linuxmint-Z68MA-D2H-B3 kernel: [26507.443620] usb 2-1.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 16:08:17 linuxmint-Z68MA-D2H-B3 kernel: [26507.443623] usb 2-1.4: Product: USB2.0-Ser!
May 16 16:08:17 linuxmint-Z68MA-D2H-B3 kernel: [26507.445789] usb 2-1.4: ch341-uart converter now attached to ttyUSB0
May 16 16:08:17 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 2, device 5: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4"
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.170560] usb 2-1.2: new high-speed USB device number 6 using ehci-pci
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.263211] usb 2-1.2: New USB device found, idVendor=1e3d, idProduct=4082
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.263216] usb 2-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=3
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.263219] usb 2-1.2: Product: Flash Disk
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.263222] usb 2-1.2: SerialNumber: 213244704081
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 2, device 6: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2"
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.285404] usb-storage 2-1.2:1.0: USB Mass Storage device detected
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.285464] scsi4 : usb-storage 2-1.2:1.0
May 16 16:12:47 linuxmint-Z68MA-D2H-B3 kernel: [26778.285560] usbcore: registered new interface driver usb-storage
May 16 16:25:17 linuxmint-Z68MA-D2H-B3 kernel: [27528.501341] usb 2-1.2: USB disconnect, device number 6
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.116191] usbcore: registered new interface driver usbfs
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.116197] usbcore: registered new interface driver hub
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.116215] usbcore: registered new device driver usb
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.568106] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.568108] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.568109] usb usb1: Product: EHCI Host Controller
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.568111] usb usb1: Manufacturer: Linux 3.11.0-12-generic ehci_hcd
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.568112] usb usb1: SerialNumber: 0000:00:1a.0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584106] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584108] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584109] usb usb2: Product: EHCI Host Controller
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584111] usb usb2: Manufacturer: Linux 3.11.0-12-generic ehci_hcd
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584112] usb usb2: SerialNumber: 0000:00:1d.0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584474] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584475] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584476] usb usb3: Product: xHCI Host Controller
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584478] usb usb3: Manufacturer: Linux 3.11.0-12-generic xhci_hcd
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584479] usb usb3: SerialNumber: 0000:04:00.0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584603] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584605] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584606] usb usb4: Product: xHCI Host Controller
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584608] usb usb4: Manufacturer: Linux 3.11.0-12-generic xhci_hcd
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.584609] usb usb4: SerialNumber: 0000:04:00.0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    0.882965] usb 1-1: new high-speed USB device number 2 using ehci-pci
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.024644] usb 1-1: New USB device found, idVendor=8087, idProduct=0024
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.024649] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.136244] usb 2-1: new high-speed USB device number 2 using ehci-pci
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.268708] usb 2-1: New USB device found, idVendor=8087, idProduct=0024
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.268713] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.340474] usb 1-1.6: new low-speed USB device number 3 using ehci-pci
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.436502] usb 1-1.6: New USB device found, idVendor=04f3, idProduct=0230
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.436507] usb 1-1.6: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.436510] usb 1-1.6: Product: USB+PS/2 Optical Mouse
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.540529] usb 2-1.4: new full-speed USB device number 3 using ehci-pci
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.567410] usbcore: registered new interface driver usbhid
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.567412] usbhid: USB HID core driver
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.632907] input: USB+PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input3
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.632972] hid-generic 0003:04F3:0230.0001: input,hidraw0: USB HID v1.11 Mouse [USB+PS/2 Optical Mouse] on usb-0000:00:1a.0-1.6/input0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.649389] usb 2-1.4: New USB device found, idVendor=1a86, idProduct=7523
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.649391] usb 2-1.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    1.649393] usb 2-1.4: Product: USB2.0-Ser!
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    3.553345] usbcore: registered new interface driver usbserial
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    3.553546] usbcore: registered new interface driver usbserial_generic
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    3.553715] usbserial: USB Serial support registered for generic
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    3.556629] usbcore: registered new interface driver ch341
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    3.556857] usbserial: USB Serial support registered for ch341-uart
May 16 16:27:36 linuxmint-Z68MA-D2H-B3 kernel: [    3.558988] usb 2-1.4: ch341-uart converter now attached to ttyUSB0
May 16 16:45:05 linuxmint-Z68MA-D2H-B3 kernel: [ 1052.238828] usb 2-1.4: USB disconnect, device number 3
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.119770] usb 2-1.2: new full-speed USB device number 4 using ehci-pci
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213050] usb 2-1.2: New USB device found, idVendor=1a86, idProduct=7523
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213056] usb 2-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213059] usb 2-1.2: Product: USB2.0-Ser!
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2"
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.215761] usb 2-1.2: ch341-uart converter now attached to ttyUSB0


                                        
$ tail -f /var/log/syslog
May 16 20:53:51 linuxmint-Z68MA-D2H-B3 mate-screensaver-dialog: pam_ecryptfs: seteuid error
May 16 20:59:16 linuxmint-Z68MA-D2H-B3 mate-screensaver-dialog: pam_ecryptfs: seteuid error
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.119770] usb 2-1.2: new full-speed USB device number 4 using ehci-pci
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213050] usb 2-1.2: New USB device found, idVendor=1a86, idProduct=7523
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213056] usb 2-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213059] usb 2-1.2: Product: USB2.0-Ser!
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.213465] ch341 2-1.2:1.0: ch341-uart converter detected
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2"
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 mtp-probe: bus: 2, device: 4 was not an MTP device
May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.215761] usb 2-1.2: ch341-uart converter now attached to ttyUSB0
                                        1 Reply Last reply Reply Quote 0
                                        • stephenw10S
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          A null-modem cable has the transmit and receive lines crossed such that two machines with standard serial ports can talk to one another. A standard serial cable for connecting a PC to some other serial device does not.
                                          See:
                                          http://en.wikipedia.org/wiki/Null_modem

                                          It looks like your USB-serial adapter was recognised just fine:

                                          May 16 21:04:10 linuxmint-Z68MA-D2H-B3 kernel: [16602.215761] usb 2-1.2: ch341-uart converter now attached to ttyUSB0

                                          You should be able to open ttyUSB0 in a serial terminal emulator, like putty. In Xubuntu there is an issue where the user doesn't have permissions to access the serial port and putty gives no helpful errors or log entries. Nice  ::). The workaround is to add your user to the modem group. There may be a similar issues in Mint.

                                          Steve

                                          1 Reply Last reply Reply Quote 0
                                          • E
                                            eiger3970
                                            last edited by

                                            Oh, great to see the APU is connecting via the USB port.

                                            So, I've tried a few ways to connect to the serial APU.

                                            Terminal > $ cu -1 /dev/ttyUSB0 -s 19200
                                            cu: /dev/ttyUSB0: System not found

                                            $ screen /dev/ttysUSB0 19200
                                            [screen is terminating]
                                            $ screen /dev/ttys0 19200
                                            [screen is terminating]

                                            $ minicom
                                            minicom: cannot open /dev/tty8: Permission denied

                                            $ sudo mincom
                                            Welcome to minicom 2.6.2

                                            OPTIONS: I18n
                                            Compiled on Feb  8 2013, 07:03:03.
                                            Port /dev/tty8, 22:05:36

                                            Press CTRL-A Z for help on special keys

                                            $ putty
                                            Serial line: /dev/ttyUSB0 > Speed: 9600 > PuTTY Fatal Error: Unable to open connection to: Unable to open serial port.

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.