private static void OnHotPlug(KHOT_HANDLE hotHandle,
KLST_DEVINFO_HANDLE deviceInfo,
KLST_SYNC_FLAG plugType)
{
LinkDevice d;
int totalPluggedDeviceCount = (int)hotHandle.GetContext().ToInt64();
if (totalPluggedDeviceCount == int.MaxValue)
{
// OnHotPlug is being called for the first time on handle: hotHandle.Pointer.
totalPluggedDeviceCount = 0;
}
switch (plugType)
{
case KLST_SYNC_FLAG.ADDED: // Arrival.
totalPluggedDeviceCount++;
lock (Manager.UsbConnectionLock) {
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "OnHotPlug.Added: " + UsbLinkDevice.DeviceInfoToString(deviceInfo));
}
if (UsbPermissionValidator.CheckAllowed(deviceInfo.Common.Vid, deviceInfo.Common.Pid))
{
UsbLinkDevice.TryOpeningDevice(deviceInfo);
}
else
{
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "OnHotPlug.Added: Not allowed: " + UsbLinkDevice.DeviceInfoToString(deviceInfo));
}
}
}
break;
case KLST_SYNC_FLAG.REMOVED: // Removal.
totalPluggedDeviceCount--;
lock (Manager.UsbConnectionLock) {
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "OnHotPlug.Removed: " + UsbLinkDevice.DeviceInfoToString(deviceInfo));
}
d = LinkManager.Manager.FindDevice(UsbLinkDevice.GetDevIdFromHandle(deviceInfo));
UsbLinkDevice u = d as UsbLinkDevice;
if (u != null)
{
u.Disconnect(deviceInfo); // Disconnect device but keep in Active list.
}
}
break;
default:
return;
}
hotHandle.SetContext(new IntPtr(totalPluggedDeviceCount));
}
// Scan the current usb devices to check all connected.
private void CheckConnections()
{
lock (UsbConnectionLock) {
KLST_DEVINFO_HANDLE deviceInfo;
LstK lst = new LstK(KLST_FLAG.NONE);
int deviceCount = 0;
lst.Count(ref deviceCount);
while (lst.MoveNext(out deviceInfo))
{
LinkDevice d = LinkManager.Manager.FindDevice(UsbLinkDevice.GetDevIdFromHandle(deviceInfo));
// Check if d is a suspended Acc with same SN but different V/P.
if (d == null || ((d.State != ComponentState.Working) /*&& !UsbLinkDevice.CompareVidPid(d, deviceInfo)*/))
{
if (UsbPermissionValidator.CheckAllowed(deviceInfo.Common.Vid, deviceInfo.Common.Pid))
{
UsbLinkDevice.TryOpeningDevice(deviceInfo);
}
}
}
lst.Free();
}
}