hid

问题 Sniffed URB_INTERRUPTions I sniffed communication between some application (SoundLab) and device (sonometer with usb). I found a packet responsible for returning current state: USB URB [Source: host] [Destination: 1.1.2] USBPcap pseudoheader length: 27 IRP ID: 0xffff858d126f4a60 IRP USBD_STATUS: USBD_STATUS_SUCCESS (0x00000000) URB Function: URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER (0x0009) IRP information: 0x00, Direction: FDO -> PDO 0000 000. = Reserved: 0x00 .... ...0 = Direction: FDO ->

问题 I'm trying to integrate a USPS postage scale with a C# application and I'm having no luck. I actually have 2 scales, one is a Mettler Toledo PS60 and the other is the USPS PS-100 (http://www.measurement-ltd.com/ps-100-det.html). The MT scale works beautifully with Mike O'Brien's HidLibrary (https://github.com/mikeobrien/HidLibrary). However, the USPS scale does not (Please note that this is NOT the Stamps.com scale, which DOES appear to work with the HidLibrary). I know the scale is working

问题 I am working on a program that is writing to an HID device and am getting the error 87, Invalid parameter on the WriteFile function. I got the functions from Jan Axelson's USB Complete so I'm not sure why I am getting the error. I am using this to find my device: private void USBInit() { IntPtr deviceInfoSet; Int32 memberIndex = 0; SP_DEVICE_INTERFACE_DATA MyDeviceInterfaceData = new SP_DEVICE_INTERFACE_DATA(); Int32 bufferSize = 0; IntPtr detailDataBuffer; Boolean success = false;

问题 I have a barcode scanner connected to my RasPi without any tty, which means headless without a monitor. In other words, a keylogger for number inputs. This scanner reads numerical barcodes like GTIN or EAN. It works, the script is started by sh on boot. The script I use looks like that: import sys tStr = '' while 1: fp = open('/dev/hidraw3', 'rb') buffer = fp.read(8) for c in buffer: if c: if c == 40 or c == 88: # [ENTER-key] function_to_handle_result (tStr) tStr = '' elif c == 98 or c == 39:

问题 I have a USB HID device that can work in two different modes. The selection of modes is based on the sequence of USB enumeration/initialization packets sent to it. I am using a Raspberry Pi 3 running Raspbian, however I also see the same issue if I compile my code for my desktop Ubuntu distro. The issue I have is that linux is recognizing the USB device as a HID device and then sending the sequence of commands that it deems necessary to start the device, and this works correctly and starts

问题 I am trying to programmatically connect an Android phone to a Bluetooth device (which is already paired). I am using createRfcommSocketToServiceRecord(UUID) method in a thread. I know the Bluetooth keyboard is a HID device so I am using UUID as 00001124-0000-1000-8000-00805f9b34fb The above method returns a BluetoothSocket object, but it fails to connect to the HID device, when bluetoothSocket.connect() is called. It gives IOException: discovery failed I have searched about this a lot, but no

问题 First of all i am new to C#. I want to create an application that detects any usb hid device (I have used HidLibrary and it detects the HIDs) but i want to get input from the hid as well (I have used Raw input but that doesn't work i think its only for keyboards). for example if i have connected a mouse then any type of input from that mouse either movement or clicks will cause a function to run. All i want to know is that which function is executed in the HidLibrary when an input comes from

问题 What is the simplest way to get raw access to HID devices on OS X? I've been looking through the IOKit examples, but even opening a device seems needlessly complex, involving multiple callbacks and include things from half a dozen libraries. libusb is available for OS X, but the kernel grabs all HID devices for exclusive access, and I have been getting strange behavior while trying to use a codeless .kext to block it from associating with my device (it prevents the kernel from grabbing the

问题 I'm trying to build an app that will accept keyboard input from a remote control that emulates a keyboard. I need to capture all keys from the remote, including volume up/down (it emulates a multimedia keyboard, fwiw). I can't figure out how to do that in a UWA. I've tried Windows.UI.Input.KeyboardDeliveryInterceptor and Windows.UI.Core.CoreWindow.GetForCurrentThread().KeyDown, which capture some input, but not all keys (it doesn't capture the special keys). I don't plan to include this app

问题 How can I create a virtual HID device in code? I'm trying to avoid writing a kernel extension to accomplish this, but it seems to be the only way. I need to be able to create virtual HID devices of all types, and have an app running in the background feed them events. Is there a way to do this in user-space, or must I venture into kernel land? 回答1: The typical way of creating HID devices is to use the IOHID* classes in IOKit. You can write a userclient that passes events in and out. I'm not