USB设备UDev和D-BUS
我正在尝试获取Ubuntu 10.10中当前插入的USB设备的列表，并监视发生的变化，例如使用UDev和D-BUS插入或拔出的设备。我是使用D-BUS进行编程的新手。我看到一个例子：Linux：如何检测usb键盘是插入和拔出只有一个人使用HAL我知道HAL已被弃用。我找到了一些工作代码，对它进行了一些修改，只是它不适用于任何设备，只有存储设备，如usb棒，媒体播放器或cd-rom设备。我希望老鼠，键盘，usb相机充电器充满任何插入USB的东西我希望我的程序知道它。这基本上就是我所拥有的（http://moserei.de/2010/01/08/accessing-devicekit-with-dbus-and-python.html）：
import dbus
import gobject
from dbus.mainloop.glib import DBusGMainLoop
def device_added_callback(device):
print 'Device %s was added' % (device)
def device_changed_callback(device):
print 'Device %s was changed' % (device)
#must be done before connecting to DBus
DBusGMainLoop(set_as_default=True)
bus = dbus.SystemBus()
proxy = bus.get_object("org.freedesktop.UDisks",
"/org/freedesktop/UDisks")
iface = dbus.Interface(proxy, "org.freedesktop.UDisks.Device")
devices = iface.get_dbus_method('EnumerateDevices')()
print '%s' % (devices)
#addes two signal listeners
iface.connect_to_signal('DeviceAdded', device_added_callback)
iface.connect_to_signal('DeviceChanged', device_changed_callback)
#start the main loop
mainloop = gobject.MainLoop()
mainloop.run()
没有找到相关结果
已邀请:
2 个回复
浮凰量
import pyudev context = pyudev.Context() monitor = pyudev.Monitor.from_netlink(context) observer = pyudev.pygtk.GUDevMonitorObserver(monitor) observer.connect('device-added', device_added_callback) observer.connect('device-changed', device_changed_callback) monitor.enable_receiving() mainloop = gobject.MainLoop() mainloop.run()搂腹时
import dbus bus = dbus.SystemBus() proxy = bus.get_object("org.freedesktop.Hal", "/org/freedesktop/Hal/Manager") iface = dbus.Interface(proxy, "org.freedesktop.Hal.Manager") devices = iface.GetAllDevices () for device in devices: try: proxy1 = bus.get_object("org.freedesktop.Hal", device) iface1 = dbus.Interface(proxy1, "org.freedesktop.Hal.Device") props = iface1.GetAllProperties() removable = iface1.GetProperty("storage.removable") usb = iface1.GetProperty("storage.bus") if usb== "usb": print "n".join(("%s: %s" % (k, props[k]) for k in props)) # shows available properties except: pass#!/usr/bin/python import dbus import gobject class DeviceAddedListener: def __init__(self): self.bus = dbus.SystemBus() self.hal_manager_obj = self.bus.get_object("org.freedesktop.Hal", "/org/freedesktop/Hal/Manager") self.hal_manager = dbus.Interface(self.hal_manager_obj,"org.freedesktop.Hal.Manager") self.hal_manager.connect_to_signal("DeviceAdded", self._filter) def _filter(self, udi): device_obj = self.bus.get_object ("org.freedesktop.Hal", udi) device = dbus.Interface(device_obj, "org.freedesktop.Hal.Device") self.do_something(device) def do_something(self, device): try: usb = device.GetProperty("storage.bus") info = device.GetProperty("info.product") removable = device.GetProperty("storage.removable") print info except: pass#blah blah if __name__ == '__main__': from dbus.mainloop.glib import DBusGMainLoop DBusGMainLoop(set_as_default=True) loop = gobject.MainLoop() DeviceAddedListener() loop.run()