KWorld 340U - need help.

KWorld 340U - need help.

[Anil Ramachandran]

Pardon me if I am posting without enough research, but I have scoured the
internet a whole day and done my best.

I have a KWorld 340U which is an em2870 device. I used the patch mentioned
at http://www.mail-archive.com/em28xx@mcentral.de/msg02008.html to install
the driver, but I am still confused on the firmware. em28xx help websites
drive me to xc3028 firmware but my tuner is a TDA18271 as per the driver
patch. I have modprobed both em28xx and em28xx-dvb and when i plug in the
module, the driver seems to be associated.

usb 8-2: new high speed USB device using ehci_hcd and address 8
> usb 8-2: configuration #1 chosen from 1 choice
> em28xx: new video device (1b80:a340): interface 0, class 255
> em28xx: device is attached to a USB 2.0 bus
> em28xx #0: Alternate settings: 8
> em28xx #0: Alternate setting 0, max size= 0
> em28xx #0: Alternate setting 1, max size= 0
> em28xx #0: Alternate setting 2, max size= 1448
> em28xx #0: Alternate setting 3, max size= 2048
> em28xx #0: Alternate setting 4, max size= 2304
> em28xx #0: Alternate setting 5, max size= 2580
> em28xx #0: Alternate setting 6, max size= 2892
> em28xx #0: Alternate setting 7, max size= 3072
> em2880-dvb.c: DVB Init
> tda18271 1-0060: creating new instance
> TDA18271HD/C2 detected @ 1-0060
> DVB: registering new adapter (em2880 DVB-T)
> DVB: registering frontend 0 (LG 3304)...
> em28xx #0: Found KWorld ATSC 340U
> usb 8-2: New USB device found, idVendor=1b80, idProduct=a340
> usb 8-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
> usb 8-2: Product: USB 2870 Device
>

But my dmesg does not seem to have the eeprom listing etc that I typically
see on other people's logs. Further, on scanning using Kaffeine or dvbscan
using the US-ATSC-Center-Frequencies-8VSB channel profile, (I live in St.
Louis, MO, US) I end up with

 DvbCam::probe(): /dev/dvb/adapter0/ca0: : No such file or directory
> Using DVB device 0:0 "LG 3304"
> tuning ATSC to 57028000
> inv:2 mod:7
> . LOCKED.
> Transponders: 1/68
> scanMode=1
> parseMGT called for 0x1ffb 0xc7
>
> Invalid section length or timeout: pid=8187
>
> Could not find MGT in stream.  Cannot continue
> Frontend closed
> Using DVB device 0:0 "LG 3304"
> tuning ATSC to 63028000
> inv:2 mod:7
> ..................................................
>
> Not able to lock to the signal on the given frequency
> Frontend closed
> dvbsi: Cant tune DVB
> Using DVB device 0:0 "LG 3304"
> tuning ATSC to 69028000
> inv:2 mod:7
> ..................................................
>
> Not able to lock to the signal on the given frequency
> Frontend closed
> dvbsi: Cant tune DVB
> Using DVB device 0:0 "LG 3304"
> tuning ATSC to 79028000
> inv:2 mod:7
> ..................................................
>
> Not able to lock to the signal on the given frequency
> Frontend closed
> dvbsi: Cant tune DVB
> Using DVB device 0:0 "LG 3304"
> tuning ATSC to 85028000
> inv:2 mod:7
> ..............................................
> Invalid section length or timeout: pid=16
>
> ....
>
> Not able to lock to the signal on the given frequency
> Frontend closed
> dvbsi: Cant tune DVB
>


It seems the first tuning operation succeeds in getting a lock but then
times out and then all the rest fail. I am not sure what is next but I think
this may be related to firmware, or to me not loading all required modules.
If anybody has a helpful clue, I would appreciate it. I am running OpenSuse
11.1 32 bit.
--
video4linux-list mailing list
Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/video4linux-list

Re: KWorld 340U - need help.

[acano]

On Sat, Feb 28, 2009 at 09:30:20PM -0600, Anil Ramachandran wrote:
> Pardon me if I am posting without enough research, but I have scoured the
> internet a whole day and done my best.
>
> I have a KWorld 340U which is an em2870 device. I used the patch mentioned
> at http://www.mail-archive.com/em28xx@mcentral.de/msg02008.html to install
> the driver, but I am still confused on the firmware.

no firmware

> Further, on scanning using Kaffeine or dvbscan
> using the US-ATSC-Center-Frequencies-8VSB channel profile, (I live in St.
> Louis, MO, US) I end up with
>


> > ....
> >
> > Not able to lock to the signal on the given frequency
> > Frontend closed
> > dvbsi: Cant tune DVB
> >
>
>
> It seems the first tuning operation succeeds in getting a lock but then
> times out and then all the rest fail. I am not sure what is next but I think
> this may be related to firmware, or to me not loading all required modules.
> If anybody has a helpful clue, I would appreciate it. I am running OpenSuse
> 11.1 32 bit.

The patch only supports qam 256.

I've sent a new patch to the mcentral mailing list.  It has support
for 8vsb and has some important fixes.

--
video4linux-list mailing list
Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/video4linux-list