http://www.vdr-portal.de/board/thread.php?postid=639048
WideView WT-220U PenType Receiver (Typhoon/Freecom)
ERROR: can't open filter handle on '/dev/dvb/adapter0/demux0'
ERROR: /dev/dvb/adapter0/demux0: too many open files/Zu viele offene Dateien
ERROR (dvbdevice.c,688): too many open files/Zu viele offene Dateien
ERROR: can't set PID 257 on device 1
ERROR (dvbdevice.c,703): Ungültiger Dateideskriptor
--- dvbdevice.c.orig    2007-08-17 23:14:27.000000000 +0200
+++ dvbdevice.c 2007-08-17 23:11:01.000000000 +0200
@@ -705,6 +705,7 @@
 int cDvbDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask)
 {
   const char *FileName = *cDvbName(DEV_DVB_DEMUX, CardIndex());
+  usleep(100000);
   int f = open(FileName, O_RDWR | O_NONBLOCK);
   if (f >= 0) {
      dmx_sct_filter_params sctFilterParams;