On Tue, Sep 16, 2008 at 04:58:49AM +0200, Christophe Thommeret wrote: > Le Monday 15 September 2008 13:43:00 Johannes Stezenbach, vous avez écrit : > > On Mon, Sep 15, 2008, Christophe Thommeret wrote: > > > Le Sunday 14 September 2008 20:04:06 Christophe Thommeret, vous avez écrit : > > > > as you expected, it's abit buggy and crashes at load ;) > > > > i've searched for the alternative cinergyT2 driver. > > > > it's available at: http://linuxtv.org/hg/~tmerle/cinergyT2/ > > > > > > > > haven't tried it yet but will do (at least several people seems to have > > > > it working). > > > > > > Have it working, not as good as Holger' one (often fails to lock) but it > > > works, with both old and new api. > > > > Looking at the code, cinergyt2_fe_get_tune_settings() should > > probably set step_size = max_drift = 0 to defeat > > dvb_frontend_swzigzag_autotune(). > > c.f. mt352_get_tune_settings() > > Thanx for the hint, unfortunately it doesn't help. > In fact, if i set a larger timeout (time after which kaffeine gives up and > report tuning failure), say 5000ms, it always locks. > The average lock time is about 2000ms, but sometimes it goes up to 4000 and > sometimes it's only 200, randomly for all freqs. > If you have any idea, you are welcome :) Not really and I can't test myself since I don't have any hw. Holger's cinergyT2 driver sets the FE once (on FE_SET_FRONTEND), and then queries regularly (every 333ms or CONFIG_DVB_CINERGYT2_QUERY_INTERVAL) for the status. It NEVER retries the tuning like dvb_frontend_swzigzag_autotune() might do, and the step_size = max_drift = 0 is supposed to prevent that, but maybe dvb_frontend_swzigzag_autotune() logic is broken? A printk in the new cinergyT2 driver should tell. BTW, the cinergyT2 firmware is Open Source, you can find it in http://linuxtv.org/cgi-bin/viewcvs.cgi/dvb-hw/dvbusb-fx2/termini/ if you are interested. But there is no magic in the firmware, it just writes mt352 regs on FE_SET_FRONTEND and reads the status reg for FE_READ_STATUS. That's all. Johannes _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
