[linux-dvb] Unable to query frontend status with dvbscan

Mark Paulus mark.paulus at verizonbusiness.com
Thu Oct 16 15:19:18 CEST 2008



Stefano Sabatini wrote:
> On date Tuesday 2008-10-14 23:24:02 +0200, Stefano Sabatini wrote:
>> Hi all,
>>
>> can you say what's the meaning of such a message?
>>
>> I'm using it with:
>> dvbscan  /usr/share/dvb/dvb-t/it-MyCity
>> Unable to query frontend status
>>
>> using a TerraTec Electronic GmbH with dvb-usb-dib0700 driver.
>>
>> The module seems to be loaded correctly, indeed I get this in the
>> kernel log:
>>
>> [ 1834.456051] dib0700: loaded with support for 7 different device-types
>> [ 1834.456051] dvb-usb: found a 'Terratec Cinergy HT USB XE' in cold state, will try to load a firmware
>> [ 1834.456051] firmware: requesting dvb-usb-dib0700-1.10.fw
>> [ 1834.464197] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.10.fw'
>> [ 1834.662979] dib0700: firmware started successfully.
>> [ 1835.168928] dvb-usb: found a 'Terratec Cinergy HT USB XE' in warm state.
>> [ 1835.168997] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
>> [ 1835.169355] DVB: registering new adapter (Terratec Cinergy HT USB XE)
>> [ 1835.419963] DVB: registering frontend 0 (DiBcom 7000PC)...
>> [ 1835.499932] xc2028 1-0061: creating new instance
>> [ 1835.499932] xc2028 1-0061: type set to XCeive xc2028/xc3028 tuner
>> [ 1835.499932] input: IR-receiver inside an USB DVB receiver as /class/input/input7
>> [ 1835.510406] dvb-usb: schedule remote query interval to 150 msecs.
>> [ 1835.510416] dvb-usb: Terratec Cinergy HT USB XE successfully initialized and connected.
>> [ 1835.510696] usbcore: registered new interface driver dvb_usb_dib0700
>>
>> The led on the device switched on when I performed the first scan.
> 
> Other meaningful info:
> stefano at geppetto ~> dvbscan  /usr/share/dvb/dvb-t/it-Cagliari
> Unable to query frontend status
> stefano at geppetto ~> sudo dvbscan  /usr/share/dvb/dvb-t/it-Cagliari
> Unable to query frontend status
> stefano at geppetto ~> ls -l /dev/dvb/adapter0/
> total 0
> crw-rw---- 1 root video 212, 1 2008-09-23 00:04 audio0
> crw-rw---- 1 root video 212, 6 2008-09-23 00:04 ca0
> crw-rw---- 1 root video 212, 4 2008-09-23 00:04 demux0
> crw-rw---- 1 root video 212, 5 2008-09-23 00:04 dvr0
> crw-rw---- 1 root video 212, 3 2008-09-23 00:04 frontend0
> crw-rw---- 1 root video 212, 7 2008-09-23 00:04 net0
> crw-rw---- 1 root video 212, 8 2008-09-23 00:04 osd0
> crw-rw---- 1 root video 212, 0 2008-09-23 00:04 video0
> 
> stefano at geppetto ~> uname -a
> Linux geppetto 2.6.26-1-686 #1 SMP Thu Oct 9 15:18:09 UTC 2008 i686 GNU/Linux
> 
> The device is reported to be supported on the DVB wiki:
> http://www.linuxtv.org/wiki/index.php/TerraTec_Cinergy_HT_USB_XE
> 
> Help or hints will be appreciated.
> 
> Regards.

I believe I have seen a message like this when something else
is talking to the card already.  For instance, I run 
my cards in a Mythtv system, and in mythtv there is a setting 
to only attach to the card when actually using the card.  If that
setting is set incorrectly, mythtv will attach to the card 
at startup, and keep exclusive use of the card, not allowing
anyone else to access the card at all.


 
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