[dvblast-devel] dvblast - cannot go further

[Henrik SEKUJ]

 thank you for the help I think that driver is the problem too. I am using a linux stb zgemma h7, that has one adatper0 with three frontends: one frontend0 satellite and 1,2 terrestial and cable eachI log the first steps:
root at h7:~# dvblast -a 0 -n 1 -f 852000000 -s 6900000 -5 DVBC_ANNEX_A -m qam_256
DVBlast 3.4 (git-3.4-7-g6fa5ef5-dirty)
warning: restarting
debug: compiled with DVB API version 5.10
debug: using DVB API version 5.10
debug: Frontend "DVB-T/T2/C" supports:
debug:  frequency min: 48250000, max: 863250000, stepsize: 62500, tolerance: 0
debug:  symbolrate min: 0, max: 9360000, tolerance: 4000
debug:  capabilities:
debug:   INVERSION_AUTO
debug:   FEC_1_2
debug:   FEC_2_3
debug:   FEC_3_4
debug:   FEC_4_5
debug:   FEC_5_6
debug:   FEC_6_7
debug:   FEC_7_8
debug:   FEC_8_9
debug:   FEC_AUTO
debug:   QAM_16
debug:   QAM_32
debug:   QAM_64
debug:   QAM_128
debug:   QAM_256
debug:   QAM_AUTO
debug:   BANDWIDTH_AUTO
debug:   GUARD_INTERVAL_AUTO
debug:   HIERARCHY_AUTO
debug:   MULTISTREAM
debug:   FE_CAN_RECOVER
debug:   FE_CAN_MUTE_TS
debug:  delivery systems:
debug:   DVBT2
debug:   DVBT
debug:   DVBC_ANNEX_A
debug:   DVBC_ANNEX_C
debug: tuning DVB-C frontend to f=852000000 srate=6900000 inversion=-1 modulation=qam_256
debug: CA interface with 2 slots
debug:   CI high level interface type
debug:   CI link layer level interface type
debug:   CI physical layer level interface type (not supported) 
debug:   built-in descrambler detected
debug:   simple smart card interface
debug:   8 available descramblers (keys)
debug:   ECD scrambling system supported
debug:   NDS scrambling system supported
CAM none
error: en50221_Poll: couldn't reset slot 0
CAM none
error: en50221_Poll: couldn't reset slot 1
debug: setting filter on PID 0
debug: setting filter on PID 16
debug: setting filter on PID 17
debug: setting filter on PID 18
debug: setting filter on PID 19
debug: setting filter on PID 20
error: no config file
error: en50221: cannot read from CAM device (-1:Invalid argument)
error: en50221_Poll: couldn't get info on slot 0
error: en50221_Poll: couldn't get info on slot 1
error: en50221: cannot read from CAM device (-1:Invalid argument)
error: en50221: cannot read from CAM device (-1:Invalid argument)
error: en50221: cannot read from CAM device (-1:Invalid argument)-----million of this line--
info hardware:
root at h7:~# ls /dev/dvb/adapter0
audio0     ca1        ca3        ca5        ca7        demux1     demux3     demux5     demux7     dvr1       dvr3       dvr5       dvr7       frontend1  video0
ca0        ca2        ca4        ca6        demux0     demux2     demux4     demux6     dvr0       dvr2       dvr4       dvr6       frontend0  frontend2
root at h7:~#

The drivers are closed source and too old, kernel's  4.12(I think older)Many utilities has problem tuning with them, especially cable, but enigma2 application not. It compensates all driver problems and tunes ok   and with maximum  signal strength
May be dvblast can tune ok also. We cannot verify it because of this persistent check of ci where there is not any cam & card inserted, not needed because transponder is fta
All I need is to disable cam module
thanking for the help




    On Friday, April 18, 2025 at 01:35:05 AM GMT+2, Christophe Massiot <cmassiot at upipe.org> wrote:  
 
 Which DVB card are you using? It seems the driver is buggy.


On 17 Apr 2025, at 21:17, Henrik SEKUJ <henrisekuj at yahoo.com> wrote:
Hello,

I am playing with dvblast, let it to examine the transponder when I have a lot of 

error: en50221: cannot read from CAM device (-1:Invalid argument)

quite 45mb of this line in few seconds
Please tell me how can avoid this
If it has to be with CI, I dont need it, how can I disable CAM module completely?

thanks in advance
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