On Sat, 2011-11-05 at 17:39 +0100, Andreas Oberritter wrote: [snip] > How does MythTV set the parameters (i.e. using which interface, calls)? > If using S2API, it should also set DTV_DELIVERY_SYSTEM. The following kern.log excerpt shows MythTV setting up the card: Nov 5 11:54:52 cyclops kernel: [ 4139.489804] dvb_frontend_ioctl (82) FE_SET_PROPERTY Nov 5 11:54:52 cyclops kernel: [ 4139.489806] dvb_frontend_ioctl_properties Nov 5 11:54:52 cyclops kernel: [ 4139.489808] dvb_frontend_ioctl_properties() properties.num = 1 Nov 5 11:54:52 cyclops kernel: [ 4139.489810] dvb_frontend_ioctl_properties() properties.props = bf95ec24 Nov 5 11:54:52 cyclops kernel: [ 4139.489813] dtv_property_dump() tvp.cmd = 0x00000002 (DTV_CLEAR) Nov 5 11:54:52 cyclops kernel: [ 4139.489814] dtv_property_dump() tvp.u.data = 0xb7819a31 Nov 5 11:54:52 cyclops kernel: [ 4139.489816] dtv_property_process_set() Flushing property cache Nov 5 11:54:52 cyclops kernel: [ 4139.489841] dvb_frontend_ioctl (82) FE_SET_PROPERTY Nov 5 11:54:52 cyclops kernel: [ 4139.489842] dvb_frontend_ioctl_properties Nov 5 11:54:52 cyclops kernel: [ 4139.489843] dvb_frontend_ioctl_properties() properties.num = 7 Nov 5 11:54:52 cyclops kernel: [ 4139.489844] dvb_frontend_ioctl_properties() properties.props = 0a0acab0 Nov 5 11:54:52 cyclops kernel: [ 4139.489846] dtv_property_dump() tvp.cmd = 0x00000011 (DTV_DELIVERY_SYSTEM) Nov 5 11:54:52 cyclops kernel: [ 4139.489848] dtv_property_dump() tvp.u.data = 0x00000000 Nov 5 11:54:52 cyclops kernel: [ 4139.489850] dtv_property_dump() tvp.cmd = 0x00000003 (DTV_FREQUENCY) Nov 5 11:54:52 cyclops kernel: [ 4139.489851] dtv_property_dump() tvp.u.data = 0x0010104e Nov 5 11:54:52 cyclops kernel: [ 4139.489853] dtv_property_dump() tvp.cmd = 0x00000004 (DTV_MODULATION) Nov 5 11:54:52 cyclops kernel: [ 4139.489854] dtv_property_dump() tvp.u.data = 0x00000000 Nov 5 11:54:52 cyclops kernel: [ 4139.489856] dtv_property_dump() tvp.cmd = 0x00000006 (DTV_INVERSION) Nov 5 11:54:52 cyclops kernel: [ 4139.489857] dtv_property_dump() tvp.u.data = 0x00000002 Nov 5 11:54:52 cyclops kernel: [ 4139.489859] dtv_property_dump() tvp.cmd = 0x00000008 (DTV_SYMBOL_RATE) Nov 5 11:54:52 cyclops kernel: [ 4139.489860] dtv_property_dump() tvp.u.data = 0x014fb180 Nov 5 11:54:52 cyclops kernel: [ 4139.489861] dtv_property_dump() tvp.cmd = 0x00000009 (DTV_INNER_FEC) Nov 5 11:54:52 cyclops kernel: [ 4139.489863] dtv_property_dump() tvp.u.data = 0x00000009 Nov 5 11:54:52 cyclops kernel: [ 4139.489864] dtv_property_dump() tvp.cmd = 0x00000001 (DTV_TUNE) Nov 5 11:54:52 cyclops kernel: [ 4139.489866] dtv_property_dump() tvp.u.data = 0x00000000 Nov 5 11:54:52 cyclops kernel: [ 4139.489867] dtv_property_process_set() Finalised property cache Nov 5 11:54:52 cyclops kernel: [ 4139.489869] dtv_property_cache_submit() legacy, modulation = 0 Nov 5 11:54:52 cyclops kernel: [ 4139.489870] dtv_property_legacy_params_sync() Preparing QPSK req Nov 5 11:54:52 cyclops kernel: [ 4139.489879] dvb_frontend_add_event Nov 5 11:54:52 cyclops kernel: [ 4139.489880] dvb_frontend_ioctl_properties() Property cache is full, tuning Nov 5 11:54:52 cyclops kernel: [ 4139.489897] dvb_frontend_thread: Frontend ALGO = DVBFE_ALGO_HW Nov 5 11:54:52 cyclops kernel: [ 4139.489899] dvb_frontend_poll Nov 5 11:54:52 cyclops kernel: [ 4139.489902] dvb_frontend_thread: Retune requested, FESTATE_RETUNE Nov 5 11:54:52 cyclops kernel: [ 4139.489903] dvb_frontend_ioctl (69) FE_READ_STATUS Nov 5 11:54:52 cyclops kernel: [ 4139.489907] TurboSight TBS 6981 Frontend: Nov 5 11:54:52 cyclops kernel: [ 4139.489907] tbs6981fe - delivery system 0 is not supported Note that DTV_DELIVERY_SYSTEM is set to 0 which worked OK in 2.6.39 > SYS_UNDEFINED get's set by dvb_frontend_clear_cache() only. I think it > would be better to call dtv_property_cache_init() from there to get rid > of it. That doesn't fix this problem, which is explicitly setting DTV_DELIVERY_SYSTEM. A value of 0 (SYS_UNDEFINED) was accepted before this change and should continue to be accepted. In dtv_property_cache_submit the comment reads: /* For legacy delivery systems we don't need the delivery_system to * be specified, but we populate the older structures from the cache * so we can call set_frontend on older drivers. */ -- Lawrence -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
