Quite a while I am struggling with a problem regarding the installation of certain USB device driver in Windows CE 6.0.
The device is some kind of Digital and Analog IO device that connects to the USB port.
It is the LabJack U3.
I followed all instruction and put the driver (labjackusb.dll) and coresponding registry entries into the Windows CE image but the device is not detected correctly.
On every boot up a small Message box came up with the Title "Unidentified USB Device"
and the message "Enter the name of the driver for this USB device:"
Whatever name I put into it want work. I tried the name of the dll. Some title in from the registry and so on but never succedes.
The driver does not work nor the device.
The customer support can not help me so I am asking here somebody to help me at least
with a steps to follow to try to find a solution.
Why the OS does not matches the USB device with the corresponding driver?
I checked everything one million times and everything is in place.
There are a load of reasons this might fail. First:
Is the driver definitely a Windows CE driver?
Is it built for CE 6.0 (not 5.0 or something else)?
Is it built for the same processor architecture you have?
The way to really debug this is to hook up KITL, put in a debug version of device.exe and see what the device managet is actually doing when you plug in the device. A way better and way more reliable mechanism than just trying to guess.
Related
In ESXi console I can see my device with lsusb list
And in vm settings I add new USB Device and select my usb from dropdown list, and save settings.
But after that, I could neither see my device in windows server nor in vm configuration!
And when I try to add new device it doesn't show up in dropdown list anymore.
But still can see my device in lsusb list.
This is because the device in question is a USB storage device, specifically a flash drive. A quick Google has this hit: "S102 Pro Advanced USB 3.2 Flash Drive | Buy Now". AFAIK there is no workaround. Gory details follow in the next paragraph. Peruse at your own risk.
In vSphere ESXi 6.5 and earlier releases of ESXi the USB driver stack was a "vmklinux" driver stack with individual drivers for each device type, including USB host controllers. Thus if your installation was on a SCSI disk or PXE booted over the network you didn't need the USB storage driver at all and you could unload it and then pass the device through to a VM. Unloading the driver wasn't offically supported but could be done at the esxcli command line or if you wanted to be really daring you could delete it from your bootbank image. Note that "deleting" was only theoretical as you would really be replacing the driver module with a file of size 0 in the last loaded tar image (the only one that is customer configurable) and could thus be undone, but I digress.
The new USB native driver stack that debuted in vSphere ESXi 6.7 is a monolithic driver which means that it is not possible to unload only the storage driver. You could unload or clobber the entire USB stack but then you'd lose the keyboard and perhaps other things plus the ability to pass any USB device through to a VM. The disadvantages of monolithic USB drivers are well known and are the reason that Linus himself got involved in the redesign of the long gone Linux monolithic USB driver from over a decade ago, but I again digress. As to why VMware "improved" things by replacing a USB stack with half a dozen or more USB drivers with a monolithic stack with all the attendant disadvantages, you'd have to ask them. Feel free to request that they break the driver up into constituent modules as they know how to do this.
First of all, there's a similar thread on OpenQNX posted years ago but the solutions don't really apply for me.
Having said that, I want to create an OS image of QNX 6.6.0 to put on a Compact Flash card. This card is plugged in an USB adapter which is connected to my host pc. I'm running Neutrino in a VM (VMware/VirtualBox) for which I enabled USB support. Generally, the adapter works fine under Win (current host) and Linux.
The (apparently out-dated) tutorial I was following stated to search for devices named umass* or hd* after connecting the USB adapter. But there aren't any (except for hd0).
See also "ls /dev" screenshot.
The processes devb-umass and io-usb are running. So I expect that the adapter is detected automatically.
Any suggestions what went wrong?
OK, it seems that I had to restart the usb driver 'devb-umass' (several times). When the card reader is already plugged-in during the booting the driver will not detect it autoamtically. Thus one has to unplug and plug it in again after the devb-umass was getting re-started. It also might have been that the Host Controller Driver (HCD) was set to 'ohci' instead of 'ehci'.
Everything is working now as expected.
(Thanks Tim from the OpenQNX forum! ;) )
Current status:
I have developed some USB based device and have developed a driver on Linux using libusb. I am now porting the driver to Windows 7.
Device details
My device is a touch screen with two interfaces, one for the OS to communicate with the touch screen and the other for some vendor communication.
Old Stack Overflow post:
libusb_open returns 'LIBUSB_ERROR_NOT_SUPPORTED' on Windows 7
Here I was stuck with a problem that my libusb_open returned with an error. I learnt that I need Windows backend drivers. But I also learnt that it is for devices which are not recognised by the operating system.
Action taken
I tried installing a driver for my device using the Zadig tool, but I am not able to override the driver used by the OS with the new driver.
Do i really need a libusbx Windows backend driver for a device which has been identified and working well on windows 7? (The touch screen works perfect as a multitouch device)
What is the way forward as the device just can't be opened?
If you really use libusbx then you should be able to at least open the device for sure.
Make sure you did not mess the default HID driver for your device while playing with Zadig tool. Go to Control Panel/Device Manager/Hid section (is your device listed there?), search your device and remove the driver. Then try again.
I'm trying to connect a usb sensor (see Toradex) to an android phone (Desire Z) running android 4.0.3.
To test this, I wrote a small app to enumerate the attached device(s).
This supposed to have USB HOST mode implemented and to power the usb sensor (HID)... but it doesn't.
I got a USB OTG cable and now, when I attach the cable, a small icon appears in the status bar (car mode).
I'm disappointed since I waited for this feature for awhile now...
Any thoughts? I read almost everything out there related to this (Sven work and whatnot) but I might have missed something...
Thanks!
I have worked a lot in the past year and a half to build custom android platform. Some was under Froyo but mostly on Gingerbread. Most on the hardware I added was on either a UART or on USB, which is what you want to do. Unfortunately, it is not as easy to add a USB peripheral on an Android device than on a PC or a MAC. PCs and MACs have virtually unlimited memory space (hard drive). They can hold the drivers of a very large number of devices. That makes it possible to do auto-detection and automatic loading of drivers. On an Android device, it is a lot more lean therefor, just the required drivers are stored on the device. Every time I added a new device, I had to compile the driver for my platform and make some modification in my configuration. It is also possible to load the driver as a module instead of compiling it with the kernel (gives a file.ko output). Although, the driver must have been written accordingly. But, you will have to install it by modifying the "init.rc" which requires root privilege.
here is a few link of question/answer about about drivers in Android. That should give you a little bit more info:
USB touchscreen driver
Hope it helps but unfortunately, it is quiet a lot of work do do.
I'm new to CE programming and I have a Marvel device PXA270 with Windows CE 5.0 installed. The device has one usb port.
I wonder if there's ANYTHING I can try to connect a 3G-HDSPA usb stick to it. When plugged it only recognises its folders as a pendrive would do, but no Internet.
Thx.
Forget it. To make it work you need OS support for it or a dedicated infrastructure that the cellular modem should provide for Windows CE 5.
To have cellular support you need Cellcore included in the OS and Windows CE 5 does not support it.
What you can do is start develop your own infrastructure for the device, but it will take you several months of work and that is if you have the Cellcore code from Windows CE 6 as a reference.
The short answer is that you must have a Windows CE driver for the device. Obviously it's a composite device that enumerates as a storage device and also whatever the radio is. Windows CE understands the storage device part and therefore loads up the driver for that. It has no idea what the radio is.
You would have to either get a driver from the OEM (they probably don't have one, though it's always worth checking) or write your own (you probably don't have enough info on the radio chipset to be able to do that).