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Commit 43248a41 authored by nobodyAtall's avatar nobodyAtall
Browse files

For some devices (like SEMC 2010 ones), the kernel sends back a kickback usb... 

For some devices (like SEMC 2010 ones), the kernel sends back a kickback usb disconnect message when usb tethering is enabled.
This patch ignores this disconnect message and is configurable by the ro.tethering.kb_disconnect property by the devices needing it.

Change-Id: I5cff63c015aeb5630452f828859aa7c523f1b068
parent 07914a40

services/java/com/android/server/connectivity/Tethering.java

+11 −1
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ import android.os.Looper; 
import android.os.Message;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.SystemProperties;

import android.provider.Settings;

import android.util.Log;
@@ -116,6 +117,7 @@ public class Tethering extends INetworkManagementEventObserver.Stub { 


    private boolean mLegacy = false;	// whether we need legacy tethering support or not

    private int mProbing = 0;		// track RNDIS enable/disable disconnects

    private int kb_disconnect = 0;	// whether there is a kickback usb disconnection event when rndis is enabled



    public Tethering(Context context, Looper looper) {

        mContext = context;
@@ -505,8 +507,13 @@ public class Tethering extends INetworkManagementEventObserver.Stub { 
                if (enable) {

                    interfaceAdded(iface);

                } else {

                    if (kb_disconnect == 0) {

                        interfaceRemoved(iface);

                    }

                    else {

                        kb_disconnect--;

                    }

                }

            }

        }

    }
@@ -1301,6 +1308,9 @@ public class Tethering extends INetworkManagementEventObserver.Stub { 
                    sm.sendMessage(TetherInterfaceSM.CMD_TETHER_CONNECTION_CHANGED,

                            ifaceName);

                }

                String kb_disc = SystemProperties.get("ro.tethering.kb_disconnect");

                if("1".equals(kb_disc))

                    kb_disconnect=1;

            }

        }