usb

I use libusb to enumerate over a few usb-devices. Now i like to get the "device-path". I think it's not called usb device-path, because i was not successful with google. If i connect a usb-device with linux, i get a message in dmesg , here are a few examples for such a "device-path" with an usb temperature sensor (something like this ): Directly to a usb port: [68448.099682] generic-usb 0003:0C45:7401.0056: input,hidraw1: USB HID v1.10 Keyboard [RDing TEMPer1V1.2] on usb-0000:00:12.0-1/input0 => 12.0-1 Directly to another port: [68560.853108] generic-usb 0003:0C45:7401.0058: input,hidraw1: USB

I am writing a small program to communicate with a specific USB HID product (identified by vendor and product IDs), using libusb-1.0 on Linux. Right now, I have to run the program as root because "libusb requires write access to USB device nodes". Is there a way to change the permissions on the device I need so that I don't need to run my program as root? On modern Linux systems, udevd ( man 7 udev ) creates the device nodes for USB devices when they're plugged in. Add a udev rule that matches your device (eg. you could match by USB Vendor and Product IDs), and sets the OWNER / GROUP / MODE of

I am coding an USB host App recently, but it's stucked because I can't detect the device attached/detached event, I followed the coding note of http://developer.android.com/guide/topics/connectivity/usb/host.html and refer to other's coding in the network, After checking several times, I still can't find the problem. After my debugging, it seems that the UsbManager.ACTION_USB_DEVICE_ATTACHED/UsbManager.ACTION_USB_DEVICE_DETACHED intent is not happened, Because I try to use Context.sendBroadcast() to send a customized Intent, and my BroadcastReceiver can receive the intent. But when I attach

I want to send/receive data from my Arduino board with a Python script. I would like to do it using Python and its pySerial module which seems to fit my needs. So I installed Python and pySerial within cygwin (windows XP behind). The Python script is rather straightforward: $ cat example.py #print "testing my COM26 port using python" import serial ser = serial.Serial() ser.baudrate = 9600 ser.port = 26 ser ser.open() ser.isOpen() However at runtime I get the following error. $ python example.py Traceback (most recent call last): File "example.py", line 9, in <module> ser.open() File "/usr/lib