Hi Antti, On Mon, Feb 16, 2015 at 8:01 PM, Antti Palosaari <crope@xxxxxx> wrote: > Moikka! > > > On 02/16/2015 09:48 PM, Philip Downer wrote: >> >> The Vortex PCIe card by Prospero Technologies Ltd is a modular DVB card >> with a hardware demux, the card can support up to 8 modules which are >> fixed to the board at assembly time. Currently we only offer one >> configuration, 8 x Dibcom 7090p DVB-t tuners, but we will soon be >> releasing >> other configurations. There is also a connector for an infra-red receiver >> dongle on the board which supports RAW IR. >> >> The driver has been in testing on our systems (ARM Cortex-A9, Marvell >> Sheva, >> x86, x86-64) for longer than 6 months, so I'm confident that it works. >> However as this is the first Linux driver I've written, I'm sure there are >> some things that I've got wrong. One thing in particular which has been >> raised by one of our early testers is that we currently register all of >> our frontends as being attached to one adapter. This means the device is >> enumerated in /dev like this: >> >> /dev/dvb/adapter0/frontend0 >> /dev/dvb/adapter0/dvr0 >> /dev/dvb/adapter0/demux0 >> >> /dev/dvb/adapter0/frontend1 >> /dev/dvb/adapter0/dvr1 >> /dev/dvb/adapter0/demux1 >> >> /dev/dvb/adapter0/frontend2 >> /dev/dvb/adapter0/dvr2 >> /dev/dvb/adapter0/demux2 >> >> etc. >> >> Whilst I think this is ok according to the spec, our tester has complained >> that it's incompatible with their software which expects to find just one >> frontend per adapter. So I'm wondering if someone could confirm if what >> I've done with regards to this is correct. > > > As I understand all those tuners are independent (could be used same time) > you should register those as a 8 adapters, each having single frontend, dvr > and demux. Yes, all those tuners can be operated independently. So would I be correct in saying that in Linux an adapter is an independent tuner? In that case the only time you would have frontend0, frontend1 etc is when there is a single dvb source that is switched between tuners? -- Philip Downer +44 (0)7879 470 969 pdowner@xxxxxxxxxxxxxxxxx -- 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
