Question USB HID

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• Existing communication usb - hid in labview c code using

  Hello

  I want to write a simple temperature using labview recorder and an external hardware that communicates via usb - hid. The external hardware uses an ATMEL 90USB162 µC and probes DS18B20.

  Link to the material:

  http://www.diamex.de/dxshop/USB-temperatur-sensor-Tester-fuer-DS18B20

  The source of a simple command line tool is available (see attachment), which reads the value of the temperature of the connected sensors.

  Is it possible to include this c code in the labview application to simplify the communication?

  Thank you very much and best regards,

  Michael

  Hello

  I stopped using the existing code and replace by http://ahidlib.com/index.php/ahid-dll-and-labview. This works very well for me.

  Best regards

  Michael

• Strange question USB CPU intense operations...

  So I was hitting this strange question lately with my R4 Aurora...

  During an intense application or game, the power of my keyboard & mouse will start go on and outside... fan start office turns up and down at the same time. The computer will continue to function, but as the USB power goes on and outside, I can't use the keyboard to stop. I can hit the power button on the computer and usually it stops just fine.

  Could be that your diet is more stressed.

  If you connect a USB2 Hub supplied with 50W power brick, what happens?

• Question USB and SD micro AT10-A-104

  Hello.

  My daughter has recently dropped our Tablet and we needed to have the fixed micro-USB port.

  The other day I noticed that once more it seems to be a problem: the device is not a cable when it is plugged in to charge and it does not appear on the PC when it is attached. In addition, it wouldn't connect to an external USB.

  Oddly enough, the machine MAKES when it is plugged left. But the charger is not recognized. "And there is no history of load under the battery).

  Earlier I also realized the card SD does not register. Honestly, I can't remember if we have never successfully used the SD card!
  I wonder if there is some mysterious setting I'm missing? I changed the USB connection mode, but it makes no difference. There is no option to Mount/unmount SD in storage.

  Maybe I should factory reset and see what happens before we go into the repair shop?

  I suspect that there could be a physical problem. The USB port and SD card port are fairly close together, there are so may damage the card?

  Bright ideas? After paying for a repair, it is not cost-effective to do it again. Repair is under warranty, but if they find that it is a new problem, I'm obviously not covered...

  Hello

  I have a similar problem, but my AT10-A Tablet does not fall... in fact I have not test the SD port, but for sure the micro-USB port is having a problem: it does not recognize the Chargers and USB connections with my laptop. To the point where it says 5% battery. I'll try to keep it connected to the charger, even if the Tablet does not seem to see it.

  How can I test if the battery is really in charge?

  Have you received support from Toshiba?

  Thanks and best,
  Luca

• Mouse - touchpad and USB - HID - does not work properely on Satellite L40-139

  The mouse is very unstable. Mouse touchpad both usb do not work properely, but the touchpad a little better. It happens that, even if the mouse using USB to the point does not move, while the left and right button are always react.

  It is brand new computer (L40-139) with initially installed Windows Vista. How can I solve the problem?

  It is very disturbing. Thank you.

  Hello

  have you ever tried to recover your machine, which means a complete reinstallation of your system? First: to exclude the material errors, you must perform this step, and if the error persists, then I suggest you to contact a service partner chartered for a checkup of material and a repair action.

  If the problem occurs after reinstalling windows, visit the following link to find the closest to the ASP available in your country:

  http://EU.computers.Toshiba-Europe.com/cgi-bin/ToshibaCSG/generic_content.jsp?service=EU&ID=ASP_SUPPORT

  Greetings

• Disabling USB HID of selective suspension

  My mouse USB (Microsoft WheelMouse Optical 1.1) enters a low power idle state after a few seconds despite having disabled me the USB selective suspend power plan settings, and setting EnableSelectiveSuspend to 0 in the registry root hub device settings.

  I have been through input.inf, msmouse.inf in the DriverStore FileRepository usbport.inf seek potential sides driver suspend or slowed down the settings, but only found AddReg values for the EnableSelectiveSuspend key and change those off did not help. I could not locate HcDisableSelectiveSuspend, DeviceIdleEnabled, DefaultIdleState and UserSetDeviceIdleEnabled in the INFs.

  I suspect that the mouse is set internally to enter idle and ask the bus power downwards accordingly. Is it possible to disable forcefully suspending the mouse? Takes possession of power USB policy necessary to overthrow the specs of the device?

  Thank you!

  Hello Nick,

  Thank you for the update on this issue.

  I recommend you take your mouse hardware technician or service for further assistance as this is the problem that happens on several computers.

  Please do not hesitate to answer, in the case where you are facing in the future other problems with Windows.

• Newbie question usb.

  I have a g60-519wm and have searched everywhere I can think to look, but I can't find what kind of usb ports that I have (1.1, 2.0). Anyone knows or has any suggestions on where I can find this info? Thank you.

  Don't know if this will help or not, but I did a quicky search. Couldn't find anything on the site of HP specifically for specifications, but for the computer that you mention if you have access to product support for it and then click on manuals, one of the elements is:

  ' Devices external - Windows 7 ' who speaks using external devices and it says

  "The computer has 3 USB ports, which support the devices USB 1.0, USB 1.1 and USB 2.0."

  I also found one on ebay that so-called new in box and it says USB 2.0 so

  EBay G60-519WM

  It may be useful

• simple questions USB

  Hi guys

  If I wanted to disable usb entirely, is politics in sight, the administrator is the best place to do? or is it better to leave it there and disable via gpo?

  also if I leave a class with 23xxxx - that allows all the usb?

  If you want absolute confidence that usb is disabled (as some customers want highly security conscious workplaces) then they will often install components usb on the virtual machine guest during the installation of the agent. Without these elements, then usb does not work.

  You can use the option to disable the usb. Via GPO can give you more flexibility to do it only on a per-pool basis.

  also if I leave a class with 23xxxx - that allows all the usb?

  -I don't understand what you're asking here. can you elaborate?

  see you soon

  peterB

• Help please: View 5 will not redirect USB HID (digital scale)

  Hi all

  We use View5 in a trial now and are very close purchase but we have 1 thing that prevents us from doing. I can't redirect a USB audio device. In this case, it's a digital scale used for UPS worldship. I tried this KB, and it has not worked for me so far. http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1011600

  Please see attached screenshots of registry and Device Manager where the VMware View Client is installed. Help, please.

  On your screenshot, it looks like you have set incorrect registry value. It should simply be VID_0B67 & PID_555E, but you have added an additional suffix.

• Mouse (USB HID type) right click works not. Why? What needs to be done to tackle

  The mouse is not responding with right click. I am therefore unable to imitate explores it, etc.. What is the reason for the sudden failure of a Microsoft mouse brand?

  Hi SekarV,

  ·         You have the latest version of the software installed?

  You can consult the following documentation and see if it helps.

  Troubleshooting mouse problems

  See also:

  Support & troubleshooting | Microsoft Hardware

• Of Lexicon alpha and Yamaha MG 124 CX CONSOLE question usb sound card

  O.K. Finally, I went and bought the card its lexicon alpha. Unfortunately, I could properly coincide playback and monitoring of parameters to record with my program with ASIO CS6. Please notify.

  Alas, the Soundblaster Z is also one card of two channels, for the game.

  If you want true multitracking, none of the gear you have currently not more than two channels at once.  Your Blender is two tracks, the lexicon is two-way entry/exit and the Soundblaster is two-way entry/exit (to lower the quality that the Lexicom btw... don't believe a word of their hyperbole "spec" which is always full of technical shortcomings.

  If you want to record more than two channels at once, for example, a full battery, you need a multichannel interface.  There are many of them, usually at high enough prices.  The effect of cost more than that I know is on 1800 Tascam us.  Last I heard there were a few things going on this device because Tascam are gradually replaced by a new unit, but I know a lot of people still very happy with the original model (and others tear them while they are cheap).  The Tascam allows you to use up to 8 microphones at the same time, not involving not of your mixer at all - or, if you wanted the effects, for example, you could do two Tascam entries be the output of the mixer.

  Of course, the other way is to simply save tracks one or two at a time until you have everything and then later mix.  In this way, you can use the existing orders.

• An api imported USB does not work correctly

  Hello everyone,

  I am currently using LabVIEW to communicate with a USB device and I had to import an api USB I bought. With VC ++ this api works well, but LabVIEW has its problems.

  First of all, I imported through Tools > Import > Library (DLL), chose the DLL and the corresponding and any Headerfile which worked without problems. Now I got my 14 VI, one for each function declared in the DLL.

  It is, most of these functions will not properly work, or maybe I just don't understand their right or give them the wrong settings. I will attach a screenshot of the 'GetList.vi', which should return a list of all connected USB devices.

  My guess is that the defined pList could be a problem because it must contain the char, int etc but as you can see in the screenshot, contains only numbers.

  Any help would be greatly appreciated!

  Kind regards

  Pedro

  EDIT: Here's the description of the documentation of the api USB GetList method:

  GetList)
  This function searches the system for USB HID devices and generates a list of these devices and their availability.  The caller must provide a pointer to a buffer that will contain the list of entries of the structure.  Must also provide an integer representing the maximum number. entries may contain the buffer.  Returns the total number stored.

  int CUsbHidApi::GetList)
  unsigned int VendorID,
  unsigned int ProductID,
  char * manufacturer.
  char * SerialNum,.
  char * DeviceName,.
  mdeviceList * pList.
  (int nMaxDevices);

  Description of the settings:

    VendorID / / Vendor ID search (0xffff if not used)
  ProductID / / product ID of research (0xffff if not used)
  Constructor / / manufacturer (NULL if not used)
  SerialNum / / serial number to search for (NULL if not used)
  DeviceName / / name of the search tool (NULL if not used)
  pList / / table of the appellant for the storage devices
  nMaxDevices / / size of the ArrayList to the appellant (no.entries)

  smercurio_fc wrote:

  When I posted response you has not yet posted any header file, so I did not see the header that you posted 2 minutes after my answer. In view of the header, you should be able to call these functions. However, the pList parameter is a pointer to a structure that contains variable length strings. This isn't something that you can easily manage, and such a question was discussed several times on this forum. When you get to this level of complexity in terms of parameter data types, you will need to write a wrapper DLL so that the types of data between LabVIEW and the DLL are simple data types only.

  In fact the code created byt the library import wizard handles pointers of varying sizes correctly for an item in the structure, so nMaxDevices must never be placed in anything else but 1.

  It is also not entirely clear if manufacturer, DeviceName and SerialNum always are inputs to the function or not, but I guess they are. A problem here is that the DLL function expects a NULL pointer if it must ignore the string parameter according and not only a string empty, so you will probably need to create call several nodes of the library with the configuration of the various parameters to ignore one or more of these settings.

  The data type of mDeviceList which had been initially used by the library with a fixed size of embedded strings would have been a little bit more efficient to implement in LabVIEW but always a PITA too.

  I can only recognize smercurios statement that this type of API is absolutely better managed with a wrapper DLL. While it is not impossible to do it entirely in LabVIEW, it is more than the import library Wizard can eventually handle automatically and doesn't require so some stunts of advanced in the LabVIEW diagram memory pointer that must be done manually. Something which is not really run by a person without some serious C programming knowledge, but this person is clearly going for the wrapper DLL solution because it is much easier to manage than to do everything in a LabVIEW diagram by hand.

• Windows 7 - USB keyboard and mouse do not work once Windows starts

  The following happens occasionally:

  The keyboard works perfectly in the BIOS, the post OFFICE and when the Windows 7/64 Ultimate starts (I can tell the [Numlock] led shines). But when you see the Windows login screen, both, USB keyboard, USB mouse and stop working.

  I can say this from the [Numlock] LEDS go off and, mouse and keyboard, does not.

  There is no discernible specific deadline. Even wait minutes does not get the mouse or the keyboard back from work. In this case, the only way to get both mouse and keyboard, back from work is to reset the machine.

  I noticed this strange behavior with several keyboards, mice and different motherboards. So, it doesn't seem to be a problem related to a particular device.

  Independent since I also noticed the following:

  • I am currently using a card mother GIGABYTE Z68XP-UD3-iSSD. If I activate XDR (caching system with the small SSD disk) then Windows 7 starts up very quickly but keyboard and mouse get disabled for about 5 seconds when the login screen appears.
    .
  • During the installation of Windows, the keyboard rarely has not activate during the POST at all.

  I noticed that several people share the same problem. Is this an inherent problem USB HID? Or is there a bug in Windows that should be fixed?

  Hello

  This might be a question of power, where Windows is shutting off the power to your USB ports. Try this:

  Open the Device Manager
  Click on the tree "Universal Serial Bus".
  For each "USB root hub" do the following-
  Right-click on 'USB hub root'
  Select Properties
  Click the power management tab
  Make sure that the box "Allow the computer to turn this device to save power" is NOT checked.

  Try restarting now. If all goes well, that will take care of the issue.

• High speed HID mark

  I have a project that needs to interface a usb HID device.

  It is a mouse like device design to follow precisely the speed of material that moves (to up to a few feet per second) under the optical sensor.

  I read OK values using the code (http://www.codeproject.com/Articles/18099/A-USB-HID-Component-for-C).  Basically, it finds the device, opens a handle to it and this bed repeatedly with overlapped i/o.

  My problem is in the conversion of the latter in a rate.  The component above raises an event in a WinForms program that uses Invoke to call a function that works at the speed and display it.

  What I see is a set of maybe 10 results coming close (gap of a few milliseconds), then a big gap (30-40 ms).  Delta of the sensor values vary somewhat, but there is no obvious relationship between the gap (delta value) and the time between the values.

  I don't know if it is an artifact of the Invoke that synchronizes the whole routine on the user interface thread, or if I should not expect a response from 'real time' of this type of reading.

  There may be more low medium to achieve level (for example, DirectInput), but I don't know if it would have the same questions.

  Any help or pointers would be welcome.

  Iain

  A question like this is better asked on Technet or Microsoft developers network.

  Good luck

• USB foot pedal problem (Infinity IN-USB-2): recognized by Windows but does not work on VMware Workstation 10

  When I connect an Infinity IN-USB-2 pedal for my guest Windows 7 Professional (on Ubuntu 14.04 and VMware Workstation 10.0.2), the pedal gets recognized by Windows and different applications, but by pressing the pedal itself has no effect.

  I downloaded a USB foot pedal Tester (http://vec-infinity-in-usb-1-foot-pedal-tester.soft112.com/) on the client and he acknowledged that the device is connected, but when I pressed on any of the three pedals, the tester has not detected the presses.

  I tried the pedal on a real Windows computer, and it worked fine.

  When I connect the pedals, even with the guest in the foreground, VMware Workstation will appear a dialog box:

  The specified device is claimed by another (usbhid) driver on the host operating system. The device can be used. To continue, the appliance will be first disconnected from its current driver. [Cancel] [OK]

  When I click 'OK', we state above: Windows recognizes that the device is connected, but foot-presses are not detected. My other USB devices are not pop this dialog box. (Click Cancel maintains the device disconnected from the guest.) I don't know if the dialog box is significant or a red herring.

  Here's what/var/log/syslog says when I connect the pedal with the Windows client in the foreground:

  kernel: [281434.822751] usb 2 - 1.7: new low speed USB device number 28 using ehci-pci

  kernel: [281434.920667] usb 2 - 1.7: new USB key found, idVendor is 05f3, idProduct = 00ff

  kernel: [281434.920672] usb 2 - 1.7: new USB device strings: Mfr = 1, product = 2, SerialNumber = 0

  kernel: [281434.920675] usb 2 - 1.7: product: pedal WITH USB

  kernel: [281434.920678] usb 2 - 1.7: manufacturer: VEC

  kernel: [281434.923852] entry: CVE CVE USB pedals as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7/2-1.7:1.0/input/input38

  kernel: [281434.924239] is hid-generic 0003:05F3:00FF.0016: entry, hiddev0, hidraw3: USB HID device v1.00 [CVE CVE USB pedals] on usb-0000:00:1d.0-1.7/input0

  PSG-probe: check the bus 2, device 28: ' / sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7 '.

  PSG-probe: bus: 2, device: 28 is not a MTP device

  And when I click on "OK" to the dialog, he said:

  kernel: [281480.324926] usb 2 - 1.7: reset low speed USB device number 28 using ehci-pci

  kernel: [281480.900448] usb 2 - 1.7: reset low speed USB device number 28 using ehci-pci

  When I unplug the device, it is said:

  kernel: [281517.582472] usb 2 - 1.7: unplug USB, the device number 28

  Thanks for the ideas on solving this problem.

  Answering my own question: I spoke with a salesman who told this pedal does not work on virtual machines for the following reason:

  These pedals are all just Universal USB controllers that require programs or applications to be able to see and recognize them for use. Because they are installed by the base of Windows and Generic USB devices drivers, they can not be seen my remote computers via USB sharing etc.

  They recommended using a hotkey program to work around the problem. I have not tried this solution, but bought a different pedal that works out of the box with VM: a vP-1 vPedal. Lower build quality than infinity (in my opinion) but it works perfectly.

  This is the idea of the key of the seller:

  I have a solution that will allow you to use the pedal as expected if the remote program who need to use supports the use of shortcut keys. For example, these pedals are commonly used with NCH Software Express Scribe professional software. This software can use either a pedal, or you can assign the playback functions to access keys. In the scenario you are talking you re Express Scribe on the remote computer to use keyboard shortcuts, you then install Pedalware (http://www.altoedge.com/pedalware/index.html), a free Windows only the foot pedal utility made by NCH Software, you then use the Pedalware utility to assign the buttons on the pedal of a keyboard shortcut that coincides with those remote program.