On Fri, Oct 17, 2003 at 11:35:06AM +1000, Dmitri Katchalov wrote: > I'm trying to get Twinhan DVB-T working. As I mentioned before my card > is very similar to VP-1020/VP-1030 so I'm using dst frontend as a > starting point. I've added my card's PCI ids to bttv-cards.c and dst.c. > Now I can load the drivers and everything seem to go smoothly up to the > point where DST frontend attempts to verify the presence of CI in > dst_check_ci() function. The first write_dst succeeds, read_dst() also > succeeds and returns 0xFF as expected. dst_wait_ready() also succeeds after > 0 iterations. The second read_dst() fails with I2CDONE timeout error (-5). > > This is both good news and bad news. The good news is the first 0xFF reply. > At the very least it means that the MCU has received the command and > successfully verified the checksum. The failure of the second read_dst() > probably means that the command is not supported or that the MCU has tried > to communicate with non-existent CI module and failed.
There may also be some timing problem in the driver. > The bad news is I don't know what to do next. DST describes itself as DVB-S > (QAM) frontend while my card is DVB-T (COFDM). The parameters for QAM > and COFDM tuners are obviously different and it looks like the format of > the i2c "write tuner" command is also different. I'm trying to extract > this info from the other OS drivers and I feel I'm getting more and more > bogged down in it. Any suggestings appreciated. Dmitri, The twinhan support person should be back since 16th. Sending you her contact details again (was in previous email). Jamie -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
