[linux-dvb] Re: Avermedia DVB-T bttv [hw] or [sw]

[Peter Henderson <peter.henderson@starjar.com>]

hmm

If you have the bytesex patches, then my understanding is that you dont need to specify options to the bttv module as it should auto detect the Avermedia 771 card.

Looking at the dmesg dump, it seems to be using the wrong front end "DVB: registering frontend 0:0 (Microtune MT7202DTF)..."
Shouldnt this be a mt352 front end?

Peter.


dmm@trinity.bpa.nu wrote:

David Maslen <dmm_au@yahoo.com> writes:

  

I have a Avermedia DVB-T card working under linux 2.6.7 (with bttv
patches from bytesex.org for latest bttv driver)
It's not completely stable, but when it falls over, reloading the bttv
driver gets it going again.

dmesg output looks like this;
bttv: driver version 0.9.15 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Host bridge needs ETBF enabled.
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:00:0d.0, irq: 3, latency: 64, mmio: 0xd7000000
bttv0: detected: AverMedia AverTV DVB-T [card=104], PCI subsystem ID is 1461:0761
bttv0: using: Nebula Electronics DigiTV [card=104,autodetected]
bttv0: enabling ETBF (430FX/VP3 compatibilty)
bttv0: risc main @ 170be000
bttv0: gpio: en=00000000, out=00000000 in=0098004d [init]
i2c-algo-bit.o: (0) scl=1, sda=1
i2c-algo-bit.o: (1) scl=1, sda=0
i2c-algo-bit.o: (2) scl=1, sda=1
i2c-algo-bit.o: (3) scl=0, sda=1
i2c-algo-bit.o: (4) scl=1, sda=1
i2c-algo-bit.o: bt878 #0 [sw] passed test.
bttv0: using tuner=-1
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: video mux: input=0 mux=2
bttv0: PLL: 28636363 => 35468950 .. ok
bttv0: add subdevice "dvb0"
bt878: AUDIO driver version 0.0.0 loaded
bt878: Bt878 AUDIO function found (0).
bt878(0): Bt878 (rev 17) at 00:0d.1, irq: 3, latency: 64, memory: 0xd6800000
attach: checking "bt878 #0 [sw]"
find by pci: checking "bt878 #0 [sw]"
attach: "bt878 #0 [sw]", to card 0
DVB: registering new adapter (Ave).
DVB: registering frontend 0:0 (Microtune MT7202DTF)...

If I change my /etc/modprobe.conf to include;
options bttv            bttv_verbose=2 bttv_debug=1 card=0x68 i2c_hw=1

Then I can't start my frontend with either mplayer of tzap.

Everything I've found via google, suggests I should be using the
i2c_hw=1 option. I'm keen to see whether I'll get my reliable
encoding this way.