Assignment of a USB port to a COM Port.

Similar Questions

• How to assign a constant name 'letter' to the USB port?

  My Compaq Presario with Windows 7 has two USB ports on the front and on the back.  I use both to the front to connect a drive hard ext to the back, usb flash drives and a camera. Everytime Iplug in the disk hard ext, the PC assigns a letter to port such as J.  The next time I plug the camera into the same port, the PC gives it a different letter and I need to go back up and reconfigre Norton where to back up.  How to assign a constant name 'letter' to the USB port?

  I think that the previous answer may have been cut off, but they were right. You assign it a letter on the USB port, you assign a letter to the device. With your drive plugged, if you right-click on the computer icon and select manage you will arrive at the computer management screen. Click the disk management icon and you should see your drive listed. Right click on that and you should see a choice to change the drive letter and path. From there, click change and select a drive letter for your device.

• Test product with USB Port

  Hello world

  I'm working on a project that requires testing in the production environment.

  These products have USB Port, and the only way that we can talk to the product is via the USB Port.

  The USB port inside the unit under test uses a USB to Serial Converter of FTDI chip.

  The problem is that every time when a new branch produced on the tester, windows detects it and takes its time to install the drivers, which leads to a long cycle time. Once the drivers are installed, configure the FTDI chip for the description of the product!

  After you have configured the FTDI chip, we configure the microcontroller on the product speaks through the FTDI chip.

  Is there another way this communication could be achieved, I mean using any other platform shipped, or if some how the process can be accelerated on windows?

  Any ideas would be appreciated.

  Kind regards

  Try to add a Windows registry entry:

  Windows Registry Editor Version 5.00

  [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\UsbFlags]

  "IgnoreHWSerNum04036001" = hex: 01

  0403 6001 and corresponding to the ID of the seller (hex) corresponds to the product ID (hex)

  I used this hack successfully on test machines that go to USB FTDI serial front controller.

  Edit:

  As a side note, if the device is plugged into a different port, Windows will "load drivers" and give it a new COM port.  Take care, he still has the same physical connections and verify the port assignment after replacing the USB hubs, etc. of power failures.

• too many comm usb ports

  Hello

  I ran into what may be soon, where we test units that have built in USB ports that appear as serial comm ports. The problem is that whenever we connect to an object that has not been run on this computer until Windows assigns it a new com port number to measure. My concern is that fast enough, as the production line is in full swing, we will hit the 'magic number' of 255, the highest number of com port and I have not any idea that Windows will do at this point. Before you begin to write the code to analyze the new com port number returned by VISA and adjust"registry entries accordingly, I want to know if it's necessary. I think there are a couple of possible scenarios, Windows complains and it won't deliver a com port #, that Windows starts from the beginning, or that Windows strikes only 255, then keeps the front it. I'd rather it be at least two, won't my program messing around in the registry and really have no time at the moment, nor access to the machine (s) to experiment to see.

  Thank you

  
  

• Scan network diverts the mouse's USB port

  An MFP HP Color LaserJet 6040f network sends the scanned documents by e-mail in MS Outlook to a work station #AKD of 722EA WB HP networking with Windows XP SP3.  Not always, but sometimes the USB mouse stops working when is electronic mail and must be connected to another USB port. I tried a few times in a row, and whenever I had to plug my mouse into a new USB port (not all previous).  Fortunately, we have more than 4 USB ports available.  What can cause this problem?  It seems as if a software USB port assignment are taken hostage by the software of the scanner and reinterpreted as a port for the transmission of electronic mail.  Restart returns things to normal, but I wonder what other than getting a mouse PS/2, or rely on return to normal for most of the time.

  Hello

  1. have you you can all changes on the computer before this problem?

  Step 1: Try to uninstall and reinstall all USB controllers and check.

  To remove and reinstall all USB controllers, follow these steps:

  a. Click Start, type sysdm.cpl in the Open box and then click OK.
  b. click on the Hardware tab.
  c. click the Device Manager button.
  d. expand Bus USB controllers.
  e. right click on each device under the Bus USB controllers node and then click on uninstall to remove them one at a time.
  f. restart the computer and reinstall the USB controllers. (Restart the computer will install the USB drivers automatically.)
  g. plug in the removable USB storage device and perform a test to ensure that the problem is solved.

  Step 2: Also, look for error messages in the event viewer. If you find error messages after return the exact error message so that we can help you better.
  Reference:

  Using the event viewer
  http://www.Microsoft.com/resources/documentation/Windows/XP/all/proddocs/en-us/snap_event_viewer.mspx?mfr=true

  Understanding of event viewer
  http://www.Microsoft.com/resources/documentation/Windows/XP/all/proddocs/en-us/event_overview_01.mspx?mfr=true

  Procedure to view and manage event logs in Event Viewer in Windows XP
  http://support.Microsoft.com/kb/308427

• "unrecognized usb device": error message every time that a usb device is plugged into one of the usb ports

  "unrecognized usb device": error message every time that a usb device is plugged into one of the usb ports

  1. my laptop - acer aspire 5030 - has been having this problem for the last five months.

  2. I tried everything including changing service pack, as we have xp professional, he has recently upgraded to vista business 32-bit with service pack 1.

  3 tried all the methods start the laptop after a few hours, remove the battery, press the power button for half a minute, and so on.

  4. I finally he formatted a couple of times, but the problem is not.

  5. later, I improved the professional system of vista and installed the latest security patches, but the problem remains

  6. now, I started to update its drivers, although the device is identified to be connected, but is not recognized. "the error message" not recognized usb device "appears. I try to reinstall the drivers or upgrade of drivers, it does not. It displays the message "the drivers for this device are to this day.

  7. initially, the connection of the device, the drivers are installed but still the device does not show in Explorer.

  8. I tried to change some registry values by merging a regedit file in the registry - for display devices that are not present; but still, it has failed.

  9. I then tried to delete the file infcache1.inf in c:\windows\system32\inf, but the problem persists.

  10. Subsequently, I tried to create another registry entry to "disable selective suspend" in HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\USB by adding DWORD and assigning a binary value of 1.

  11. I tried later also to uninstall all the system devices including USB controllers, drives and the storage controllers, who must still without success.

  12. I tried to see if the drivers in safe mode, which they did not.

  13. I tried to delete the following registry entries =

  HKEY_LOCAL_MACHINES\System\CurrentControlSet\Enum | USB PORT; HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\ {4D36E967-E325-11CE-BFCI-08002BE10318 & HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\ {4D36E967-E325-11CE-BFCI-08002BE10200.  The computer does not have alow it.

  14. the BIOS indicates device pnp "disabled", which I also look for the BIOS settings, which do not allow me to change to change existing ones.

  15. I have not found the WINDOWS\SYSTEM32\drivers\USBSTOR file. SYS in my driver store. This affects the system?

  16. I also contacted manufacturers pnp devices that provided me with most recent and versions compatible drivers for my devices - namely an apple ipod & Seagate external HARD drive - but even after that the drivers are installed properly and the system rebooted the problem remains. Is this something to do with the updated playing driver registry entries does not after the update? OR is what registry entries are configured to only read the entries at the time of the installation of the OS?

  17. I also contacted local sellers who have suggested to me to change the "motherboard". This will help as a last resort?

  18. in the meantime I had also installed other operating systems to Linux - Fedora and Ubuntu; Full Windows XP - Home & Professional and Vista Edition. All these have been installed successfully but do not solve the problem of usb.

  19. I have also raised the original HARD disk & replaced by another HARD disk. also checked the power of all ihee and ehee usb ports to be at least 5 V. I also disabled the automatic deactivation of devices usb by the system. physical contact, ports and connecting cable is fine. the distribution of power is set at 10% for the ihee ports and 20% for ports ehee, which is what is should be the physical output is also close to 5V for all ports connected.

  20. all professional (hardware or software) should any solution for the problem of the usb ports on my laptop?

  Something that you haven't tried:

  How to fix USB device not recognized in Windows

  http://www.online-tech-tips.com/computer-tips/USB-device-not-recognized/

  I hope I could help

• How to configure a printer LPT when adapted to use a USB Port - Windows Vista Home Premium 64-Bit

  I have a computer that does not have an LPT port, and the printer that I want to use (EPSON Stylus Color 850) is not a USB Port or Ethernet.  I bought a cable USB2LPT and attempted to get the printer to work.

  My problem seems to be the choice of the port to use.  Here are the steps I followed:

  1. pick "Add a printer" of the control panel. Printers
     2 choose 'Add a local printer' (even if using the USB Port, like when I plugged the USB cable into the computer, I received the message installing driver recognition but not familiar "bong".)
     3 selected "use an existing port.
     4 select "USB001 (virtual printer to USB Port) - it was my best estimate of the long list provided."
     5 choose the EPSON Stylus Color 850 ECP2/PCS.

  The pilot was then installed without error and tried to print a test page which is that hangs without error.

  I deleted the printer then tried to assign the LPT1 port.  No help here either.

  If someone can help me with the installation, so I can get my documents to print I would appreciate it a lot.

  Thank you

  Dave

  You do not have an LPT port.  When you select the LPT port data are always written him even if your computer does not have the hardware installed to make it work.  It would work if you have installed a parallel PCI Port card.

  USB001 would be the first choice, then USB002...

  The next step as Fouzan points out is to contact the supplier of cable or Epson for support of printer you.  Start by Epson.

  You can try other cables, parallel PCI card or another printer. Alan Morris Windows printing team; Here Microsoft Knowledge Base search: http://support.microsoft.com/search/Default.aspx?adv=1

• Windows 7 does not recognize the new WD external hard drive added to the usb port

  Recently, I tried to add my third USB WD hard drive to my computer.  It's a My Book Essential.  The meter turns and the virtual cd drive is listed in WD, but the hard drive itself does not appear on the list of devices with a drive letter.  My my first two books are readers: J:, and L: I have no "new device found" message   I search for new devices and it the PC do not find anything.  If I click on the virtual CD drive (M :) it askes if I want the computer to allow WD to make changes...) I say Yes and the screen flashes and nothing happens.
  The drive be defective?  Any other ideas?

  Hello

  Have you tried to connect the external hard drive on another USB port?

  Try to connect the WD external hard drive on another computer.

  Follow these steps:

  Method 1: You can run the troubleshooter in the following article and see if this fits the Bill.

  Open the hardware and devices Troubleshooter

  http://Windows.Microsoft.com/en-us/Windows7/open-the-hardware-and-devices-Troubleshooter

  Also, run the Fixit.
  Hardware devices do not work or are not detected in Windows

  http://support.Microsoft.com/mats/hardware_device_problems/en-us

  Method 2: Check if the external hard drive is recognized in disk management and assign a drive letter to the same.

  To open disk management, follow these steps:

  a. click Start, type disk management in the start search box and press enter.

  (b) if the drive is detected in disk management, I suggest you to assign a drive letter and see if that does the trick.

  For instructions, see this article change, add, or remove a drive letter

• USB ports does not work

  I intend to reset my laptop to factory settings by having the PC clean up the hard drive and reinstall Windows 8.  Before I do, I'm copying the files on my flash drives. I have a moment (I'll call him 'A') is a 32GB (brand new, he got today) which is/has been formatted with diskpart (so I can use it to create a recovery partition).

  About 78-80 percent of the formatting of diskpart, I put in my latest flash player (I'll call it 'B') to copy some various files that do not have to be copied, but thought I'd for a while once the laptop has reset.  Unfortunately, as soon as Flash Drive 'B' has been plugged in, my mouse work anymore (so I just unplugged thinking the battery died), and the laptop does not save Flash drive 'B '. I tried to put the other 2 ports USB that were not used, same thing, the laptop does not save it. I refused to get out of Flash Player 'A' because it is / was still formatted with diskpart. I checked the file Explorer, and the two flash player 'A' and 'B' were not under 'computer '.
  Fortunately the files I really need to be backed up, are. So, I'm ok with that. Oh yes and I tried to put in flash players, and they were not recognized by the laptop.
  Couple questions:
  (1) Will Flash drive 'A' be affected in any way since it was "unplugged", while being formatted with diskpart?
  (2) my laptop isn't even a year yet, then how/why would my just closed USB ports?
  (3) is it possible that all 4 ports could just die at the same time random?
  (4) I really hope that's not it, but my motherboard could be beginning of failure?
  My laptop is an ACER Aspire V3 771 G, 1 TB HDD, NVIDIA GeForce GT730M, 8 GB of memory (4 dedicated for video) DDR3, Core i7 and running Windows 8 and I have had since about June of 2013. Main uses are for some school work dealing with CADD, game on PC via Steam, YouTube and Netflix occasional streaming movies via a 3rd party source that so far has given me problems such as viruses and bugs.
  I'm going to try to uninstall the USB controller drivers and reboot the laptop, unplug the power and take the battery method, simply by restarting the laptop WITHOUT uninstall the USB controller drivers. I'll try these stars and come back to say if either one of the fixes worked.
  * Real quick as question 1. USB key "A" literally just a finish is put in shape and when I entered the command 'assign', that the flash drive has been recognized once again, until I quit diskpart, now it is not yet recognized and even goes with my other, and my mouse (which the battery is NOT dead).

  Well, I would just put it out there, it was just a hiccup. I went to the stop of the laptop and he "fell on a problem" and instead start again, he drilled in reactivating the USB ports.  They all work very well. YAY! :)

• Mac Book Pro, outdoor WiFi antennas work to extend wi - fi range when plugged into USB PORTS

  Outdoor WIFI antennas work if plugged into the USB port on the Mac Book Pro. If they do, those who extend range of transmission and reception wi - fi?

  Sorry, but I've never used an external USB wifi antenna but if you describe your use case a wifi Repeater/Extender can be a good option for you. https://www.repeaterstore.com/pages/WiFi-booster-Repeater-Extender-differences

  If the option is not a Repeater/Extender so will have to wait for someone who has used an external USB antenna down to.

• Faulty USB Ports & Solutions possible

  Hi all, my first post. So is everyone.

  I have a 15 "mid 2012 Macbook Pro which is now defective USB ports, I took it to a repair

  a specialist who said it would cost a lot of trouble and would be a difficult task.

  I have to push a device or a cable down hard enough so he could read once I insert it

  in the port and keep up the pressure if I want to read or write.

  Now, I thought that a thunderbolt port was just for the video, but I found the following: (crush on usb hubs)

  https://www.Amazon.com/Thunderbolt-USB-Gigabit-Ethernet-adapter/DP/B00T9LI7CO/re f = sr_1_7? s = electronics & ie = UTF8 & qid = 14656...

  http://www.bhphotovideo.com/c/product/1075056-reg/kanex_ktu10_thunderbolt_to_usb _3_0_esata.html

  Will this work on my mac? Or are there other ways for me to get the capability of USB back to? I need at least a USB port for my drawing tablet. Thus, a port would be nice.

  Any help will be appreciated.

  MM

  Cape Town, South Africa

  The two cards you access both should work.  The eSata connection is probably not a good option for you.

  If you can not the USB ports repaired (which usually requires the replacement of the logic board) consider something suc as this:

  https://eShop.MacSales.com/item/other%20World%20Computing/TB2DOCK12P/?utm_source = google & utm_medium = shoppingengine & utm_campaign = googlebase & gclid = CPL8rPSuos0CFcQj gQodc8oGog

  It is not cheap, but cheaper than a logic board.

  Ciao.

• Install on MacBook BootCamp with no USB port

  Dear community,

  I would like to install BootCamp on my new MacBook (MacBook8, 1 ongoing El Capitan 10.11.4), which does not have a USB port.  I was encouraged by this post: http://blog.twocanoes.com/post/130203487014/apple-boot-camp-no-longer-requires-u sb - flash drive , but when I run the Boot Camp Assistant, I don't see the interface he means.  I wonder if there is a workaround solution known to you guys, who maybe is to manually create the partition OSXRESERVED mentioned in the article.

  I also thought that maybe a firmware update would be useful by train, but the information here at least (on EFI and updates of the firmware SMC for Mac computers with processor Intel - Apple Support) does not include my MacBook8, 1 identifier.  (My current boot Version of ROM: MB81.0164.B13 and SMC Version: 2.25f87)

  Thank you

  Mike

  The hole where you put your charger in is a versatile connection. There is a small adapter from apple, you can put with three connectors on the other side: a HDMI cable, USB3, charger.

• Help! I need to connect my iPhone5s to the stereo, but it has only one usb port and whenever I connect it, it connects? Is there a setting on my phone, I need to change? Help, please

  Help! I NEED to connect my iPhone5s to the stereo, but it has only one usb port and whenever I connect it, it connects? Is there a setting I need to change on my phone? Help, please

  You will need something like that and a micro USB to USB cable

  http://www.Apple.com/shop/product/MD820AM/A/lightning-to-micro-USB-adapter

• Zbook G3 HP: HP Zbook Thunderbolt 3 Dock USB ports not working not

  I have a HP Zbook Thunderbolt 3 dock on my HPZbook G3.  I've recently updated the BIOS and the firmware to the latest version to solve other problems 'dock '.  Am now at the latest for both.  The two monitors and ethernet on the work of lightning 3, but none of the USB ports are active.

  I am sure that the USB ports work, because they used to work before the update BIOS and firmware.  Keyboard, mouse, or USB memory on the dock work.

  I tried to go to the HP support and install the updates with the USB in it, but it didn't work.  I have a workaround - just connect the laptop directly, but I'd like to get my fully functioning dock.

  Device Manager does not display devices with questions.  I'll try to update, but I don't know which one to look at.

  

  Hey people,

  HP is dedicated to providing quality products to meet the needs of our customers. We listen to the customer feedback on our recent Thunderbolt Dock for use with the latest products ZBooks, and Elite Notebook. We continue to work with our customers to solve problems.

  Please find tips and updates to improve your use of the HP Thunderbolt docking station.

  1. The Thunderbolt dock uses the latest technology thunderbolt. To be fully functional, it takes the latest firmware, BIOS, and drivers to work properly. Please follow the step by step process as described below in "The process of updating your device".
  2. Here are links to the user, technical white paper guide helps and guides troubleshooting. Please, use them to help when you have problems after you have fully updated your device and platform by following the instructions above. Please note that you may copy and paste the links in your browser.
  3. If you still have any questions, please call HP support. We're here and eager to help succeed you using the HP docking station new Thunderbolt.

  Useful links

  User Guide: http://h20565.www2.hp.com/hpsc/doc/public/display?sp4ts.oid=11122586 & docLocale = en_US & docId = emr_na-c05141189

  Technical white paper: http://www8.hp.com/h20195/v2/GetPDF.aspx/4AA6-5088EEW.pdf

  Help & troubleshooting the Dock: www.hp.com \support\thunderbolt3dock

  Process to update your device

  NOTE: Instructions below is found in the User Guide "Getting Started" to "Implementation of the dock" to "step 2: update your computer.

  Before connecting the dock to your computer, update the BIOS, software and drivers on your computer.

  NOTE: If you do not, the wharf may not work. For best performance, keep all software and drivers on your computer up to date. (See table 1)

  Update the BIOS and the software and drivers:

  1. Go to http://www.hp.com/support. Select the drivers and Get software, enter your model of computer (on the computer service tag) number, and then select search for my product.
  2. Click the link for your specific computer, select your operating system and then download the latest version

  BIOS, software and drivers as follows: Intel® Thunderbolt Firmware Update Utility, Intel's Thunderbolt

  Secure Connect Driver, graphics drivers, ASMedia eXtensible Host Controller Driver, Broadcom Ethernet

  Controller and driver Conexant USB driver.

  1. Install the latest version of the BIOS.
  2. Restart the computer.
  3. Install the last stroke of lightning Secure Connect driver Intel.
  4. Restart the computer.
  5. Install the latest Intel Thunderbolt Firmware Update Utility
  6. Restart the computer.
  7. Install any remaining updates in any order. Restart the computer after each update.

  Table 1

  For the products supported Thunderbolt Dock all HP
  Name of the component	Category on the Support Page on hp.com	Where to check (this applies to all laptops)
  BIOS	(BIOS)	BIOS F10 Setup to information system
  Intel's Thunderbolt course connect driver	(Pilot - controller)	Right click on tray icon Thunderbolt to settings for details.

  The Thunderbolt of Intel® firmware update utility

  (Firmware)

  Right click on tray icon Thunderbolt to settings for details. Note that the numbers on the left will not directly reflected. NVM Firmware Version: 16 PD Firmware Version: 1.07.03

  Intel Graphics Driver

  (Driver - graphics)

  Right click on the desktop to graphic properties (icon intel) Options & Information Center Support.

  NVIDIA graphics driver

  (- Graphics - Nvidia driver)

  Right-click on the desktop to NVIDIA control panel to information system at the bottom left.

  AMD graphics driver

  (Driver - graphics)

  Right-click on the desktop to graphic properties (top) to Information to software.

  ASMedia eXtensible Host Controller Driver

  (Driver - Chipset)

  Programs & features or the Device Manager to Universal Serial Bus Controllers (dock of needs to be connected).

  Of Broadcom Ethernet controller driver

  (Driver - network)

  The Device Manager to network adapters (dock of needs to be connected).

  Conexant Audio Driver USB

  (Audio - driver)

  The Manager of devices to sound, video and game controllers (dock of needs to be connected).

  BPPSQ-

  I work on behalf of HP

• Tablet HP 8 G2 1411: Problems with my USB port on my Tablet

  Problems with my USB port on the Tablet connector. Fees sometimes and sometimes not.

  Hello and welcome to the HP support community!

  Micro USB ports tend to be quite fragile.  A good accidental yank on the cord that connected while can be enough to cause damage.

  If you want to organize repairs, contact HP directly.

  To contact HP directly, click on this link: http://www8.hp.com/us/en/contact-hp/phone-assist.html#section1
  
  Outside the U.S.: http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
  
  WyreNut