usb

I'm trying develop Google Chrome App(or extension, not sure) to use DigitalPersona fingerprint reader on Windows. Following : https://developer.chrome.com/apps/usb https://github.com/GoogleChrome/chrome-app-samples/tree/master/usb var DEVICE_INFO = { "vendorId": 1466, //0x05BA "productId": 10 //0x000A }; chrome.usb.findDevices(DEVICE_INFO, call_method); Result is "App was granted the 'usbDevices' permission, but device not found". p.s. the usb information above was found in windows device manager. Don't know why this happened. Does Google Chrome not support DigitalPersona fingerprint reader? p

I'm currently trying to compile a Linux USB UART driver, which is provided here: http://www.exar.com/connectivity/uart-and-bridging-solutions/usb-uarts/xr21v1410 The driver consists of 2 header files and one large C file. These are the contents of the Makefile: obj-m := vizzini.o KERNELDIR ?= /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) EXTRA_CFLAGS := -DDEBUG=0 all: $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install: $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install clean: rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versions vtty This is the error the compiler is throwing

I have been googling for a virtual USB stub. The idea is to make a driver that you can feed with the dataflow that normally comes from the USB controller chip. From windows it should work transparent, so it shows the "Installing New Hardware" bubble and ect., when a virtual device is connected. I know about the USB/IP open source project, is there any other projects libraries? 来源： https://stackoverflow.com/questions/9740429/virtual-usb-device

I work on a project where I need get data of keyboard and mouse on a service. I also have to be able to send data to my device hid. To do this, I want use the usb host mode. When I get list of device, I can see a mass storage but no mouse and keyboard. After search, I have seen that usbManager don't return mouse and keyboard device. I have tried to change permissions (on /system/etc/permissions) whitout success). I have run the application USB Device Info and I see mouse and keyboard on linux device and not on android devices. I use android 4.2.2. Is it possible to get hid data of mouse (and

I've got an ACR122U NFC card reader and ACR122T token from ACS. I'm trying to run their NFC Peer to Peer demo. I've installed the ACR122U SDK, mysql and connector, set up the database, and added the escape command to the registry. When I try to run the peer to peer demo I carry out the following steps (with resultant log results shown) Insert NFC ACR122T into USB port. Open the Smart Poster application and click initalise with reader 0. Log: D1: 2:04:57 PM Program ready D1: 2:05:02 PM Succesful connection to : ACS ACR122U PICC Interface 0 Direct Mode D1: 2:05:02 PM << FF 00 48 00 FF D1: 2:05

We have some HID devices (touch digitizers) that communicate with an internal R&D tool. This tool parses the raw feature reports from the devices to draw the touch reports along with some additional data that are present in the raw feature report but filtered out by the HID driver of Windows 7 (eg, pressure data is not present in WM_TOUCH messages). However, we have started working with some devices that may have different firmware variants, and thus that do not share the same ordering or bytelength of the fields and I need to modify our R&D tool so that it will adapt transparently to all the

I'm trying to figure out why my application does not start communicating with the USB accessory after the phone restarts. If I unplug the cable and plug it back in, the communication resumes. The application is targeted at Android API 19. At the app install I set it to always be the Home app and when I first connect it to the accessory I check the box to always permit the access to the current accessory. So when I restart the phone, the app opens up automatically, it goes through the steps of checking for permission ( usbmanager.hasPermission ) and it actually has the permission without any