[linux-dvb] skystar2 lost signal, no recovery.

[Stonewall Cooper <stonewall@inebraska.com>]

In testing a b2c2 (skystar2) PCI card, everything works fine until a signal 
issue occurs.

The particular application is satellite-by-ip.

When a signal drop occurs, the data stops streaming, but no errors are 
propogated to the logs or otherwise; in fact, the szap session relocks an 
shows everything is good.

I then stopped szap and all streaming applications, and attempted to reload 
the drivers.  I assumed the backout process would be to dvbnet -d all the PID 
interfaces, then do a rmmod on the modules.  However, once I do a single 
dvbnet -d - regardless of interface - I cannot do a dvbnet -d on the 
remaining interfaces:

dvbnet/dvbnet -d dvb0_2

DVB Network Interface Manager
Version 1.1.0-TVF (Build Tue Feb 08 14:21:11 2005)
Copyright (C) 2003, TV Files S.p.A

Device: /dev/dvb/adapter0/net0
Error: couldn't remove interface 0: 22 Invalid argument.

And, I assume this is related - I cannot unload the modules to attempt to 
reset the card from it's locked state.  It can only be reset via reboot, 
which is not an acceptable method in Linux. ;-)

First - is there a way to reset the card after a signal drop without having to 
reload or reboot?

Second - what am I doing incorrectly that once I remove one interface, I 
cannot remove any additional?  I have done an ifconfig <interface> down on 
each before attempting the dvbnet -d.

Thanks for any assistance.

Stonewall C.