[linux-dvb] Twinhan Starbox DVB-S, USB 2.0, done some debugging, need some help

[Ulrich Hopp]

Hello list,

after entering the command 

./szap -c channels.conf-dvbs-astra n24 -r

I got the debug output :
Apr  5 23:04:13 darkstar1 kernel: DVB: registering new adapter (TwinhanDTV 
StarBox DVB-S USB2.0 (VP7021)).
Apr  5 23:04:13 darkstar1 kernel: DVB: registering frontend 0 (Twinhan 
DST-like frontend (VP7021/VP7020) DVB-S)...
[...]
Apr  5 23:05:34 darkstar1 kernel: vp702x_fe_set_tone
Apr  5 23:05:35 darkstar1 kernel: set_tone cmd succeeded.
Apr  5 23:05:35 darkstar1 kernel: vp702x_fe_set_voltage
Apr  5 23:05:35 darkstar1 kernel: set_voltage cmd succeeded.
Apr  5 23:05:35 darkstar1 kernel: vp702x_fe_send_diseqc_msg
Apr  5 23:05:35 darkstar1 kernel: diseqc cmd succeeded.
Apr  5 23:05:35 darkstar1 kernel: vp702x_fe_send_diseqc_burst
Apr  5 23:05:35 darkstar1 kernel: vp702x_fe_set_tone
Apr  5 23:05:35 darkstar1 kernel: set_tone cmd succeeded.
Apr  5 23:05:35 darkstar1 kernel: vp702x_fe_get_tune_settings

Apr  5 23:05:35 darkstar1 kernel: setting frontend to: 1880000 -> 1880 (758) 
LNB-based GHz, symbolrate: 27500000 -> 327680 (50000)

Apr  5 23:05:36 darkstar1 kernel: tuning failed.

Apr  5 23:05:36 darkstar1 kernel: vp702x_fe_read_status
Apr  5 23:05:36 darkstar1 kernel: real state: 0
Apr  5 23:05:37 darkstar1 kernel: vp702x_fe_read_status
Apr  5 23:05:37 darkstar1 kernel: real state: 0
[...]

so, at the first glance it looks as if something is going wrong in

static int vp702x_fe_set_frontend(struct dvb_frontend* fe,
				  struct dvb_frontend_parameters *fep)

Is there any information availible to check what in this function should 
happen, e.g. from Twinhan data sheets ?

Thanks in advance and of course feel free to ask for more debugging 
information.
 
see you
 Uli