host
Android USB host read from device
You can use UsbSerial Lib of from https://github.com/mik3y/usb-serial-for-android My example code: UsbManager usbManager = null; UsbDeviceConnection connection = null; UsbSerialDriver driver = null; UsbSerialPort port = null; usbManager = (UsbManager) context.getSystemService(Context.USB_SERVICE); List<UsbSerialDriver> availableDrivers = UsbSerialProber.getDefaultProber().findAllDrivers(manager); // Open a connection to the first available driver. for (UsbSerialDriver usd : availableDrivers) { UsbDevice udv = usd.getDevice(); if … Read more
How to use Django to get the name for the host server?
I generally put something like this in settings.py: import socket try: HOSTNAME = socket.gethostname() except: HOSTNAME = ‘localhost’
Share folders from the host Mac OS to a guest Linux system in VirtualBox [closed]
You’ll need the latest version of VirtualBox (4.3.10) with Guest Additions installed in Ubuntu. With the Virtual Machine powered off and selected in VirtualBox, go to: Machine > Settings … > Shared Folders For “Folder Path”, click the icon to browse for the folder you want to share. For “Folder Name”, enter a name to … Read more
How to ping an IP address
InetAddress.isReachable() according to javadoc: “.. A typical implementation will use ICMP ECHO REQUESTs if the privilege can be obtained, otherwise it will try to establish a TCP connection on port 7 (Echo) of the destination host..”. Option #1 (ICMP) usually requires administrative (root) rights.
How to set target hosts in Fabric file
I do this by declaring an actual function for each environment. For example: def test(): env.user=”testuser” env.hosts = [‘test.server.com’] def prod(): env.user=”produser” env.hosts = [‘prod.server.com’] def deploy(): … Using the above functions, I would type the following to deploy to my test environment: fab test deploy …and the following to deploy to production: fab prod … Read more
Run command on the Ansible host
Yes, you can run commands on the Ansible host. You can specify that all tasks in a play run on the Ansible host, or you can mark individual tasks to run on the Ansible host. If you want to run an entire play on the Ansible host, then specify hosts: 127.0.0.1 and connection:local in the … Read more
How to mount host volumes into docker containers in Dockerfile during build
It is not possible to use the VOLUME instruction to tell docker what to mount. That would seriously break portability. This instruction tells docker that content in those directories does not go in images and can be accessed from other containers using the –volumes-from command line parameter. You have to run the container using -v … Read more
How do you detect the host platform from Dart code?
import ‘dart:io’ show Platform; if (Platform.isAndroid) { // Android-specific code } else if (Platform.isIOS) { // iOS-specific code } All options include: Platform.isAndroid Platform.isFuchsia Platform.isIOS Platform.isLinux Platform.isMacOS Platform.isWindows You can also detect if you are running on the web using kIsWeb, a global constant indicating if the application was compiled to run on the web: … Read more