device

问题 What is the \"format\" of the character devices located in /dev/input/event* ? In other words, how can I decode the character stream? A python example would be greatly appreciated. I\'ve been googling like crazy to no avail... please help. 回答1: right here in the Input.py module. You'll also need the event.py module. 回答2: A simple and raw reader can be just done using: #!/usr/bin/python import struct import time import sys infile_path = "/dev/input/event" + (sys.argv[1] if len(sys.argv) > 1

问题 On a debug build in Xcode, regardless of whether I am using the simulator or an actual device, NSLog, printf, fprintf assert and NSAssert statements come out on the console If I now run a release build on the device (say I send a test flight build and big it up on my iPhone; this will be a release build), which of these (if any) are getting recorded? And how do I retrieve the log? Does NSLog actually output something on release build? What is the determining factor? Whether it is writing to

问题 So all I need is simple - a list of currently avaliable video capture devices (web cameras). I need it in simple C or C++ console app. By list I mean something like such console output: 1) Asus Web Camera 2) Sony Web Camera So It seems simple but I have one requirement - use of native OS apis as much as possible - no external libs - after all - all we want is to print out a a list - not to fly onto the moon!) How to do such thing? also from this series: How to get a list of video capture

问题 I am looking for way to disable a system device (either USB or internal) in C#.NET given either the PID & VID or the device name. After searching I found Hardware Helper Library for C# on CodeProject. But I need something that will work on XP, Vista & Windows 7 (both x86 and x64 operating systems)... the project I linked only works with XP and Vista x86...even when running the application with administrator privileges. Does anyone know of a solution that would work on all operating systems?

问题 I\'m working on a project where I need my CUDA device to make computations on a struct containing pointers. typedef struct StructA { int* arr; } StructA; When I allocate memory for the struct and then copy it to the device, it will only copy the struct and not the content of the pointer. Right now I\'m working around this by allocating the pointer first, then set the host struct to use that new pointer (which resides on the GPU). The following code sample describes this approach using the

问题 I have been asked to create an actual HTML page / JavaScript to simulate detection of the mobile devices (iPhone / iPad / Android) using JavaScript code. This will then take the user to a different screen which asks them for their email address. 回答1: I know this answer is coming 3 years late but none of the other answers are indeed 100% correct. If you would like to detect if the user is on ANY form of mobile device (Android, iOS, BlackBerry, Windows Phone, Kindle, etc.), then you can use the

问题 Since I reinstalled Eclipse (simply deleted and downloaded it again) I can\'t debug my applications on Samsung Galaxy i9001 (with CyanogenMod - Android 4.4.2). It worked fine before reinstallation. Unplug/plug, Uncheck/check \"Debug Enabled\", adb kill-server/adb start-server, restart phone/computer doesn\'t work for me. On the device authorize dialog never appears (but I remember that dialog appeared before reinstallation). I have no idea how to force this authorize dialog to display. There

问题 The AVD manager in Android Studio doesn\'t show my device but \"adb devices\" does show it. Am I missing something obvious here? 回答1: To change what your application defaults to when you click run or debug in Android Studio, follow these steps: 1. go to Run 2. Click on Edit Configurations 3. Select the project 4. find the Target Device section under the General tab on the Android Application page . That seems to be where you toggle what the project builds to. If you're importing a project it

问题 Possible Duplicate: Determine device (iPhone, iPod Touch) with iOS I am making a game that utilizes the peer-to-peer bluetooth capabilities of the iPhone (and probably the iPod touch 2nd generation). However, to stop the users from trying to play a multiplayer on an iPod 1st gen and iPhone 2G I need to check for the specific device model. [[UIDevice currentDevice] model] will only tell me if the device is an \"iPhone\" or an \"iPod touch\". Is there a way to check for the specific device

问题 I\'ve just upgraded to XCode 4.5 GM and found out that you can now apply the \'4\" Retina\' size to your view controller in the storyboard. Now if I want to create an application that runs on both iPhone 4 and 5, of course I have to build every window twice, but I also have to detect whether the user has an iPhone with 3.5\" or 4\" screen and then apply the view. How should I do that? 回答1: First of all, you shouldn't rebuild all your views to fit a new screen, nor use different views for