[linux-dvb] Re: DVB API extension: DMX_GET_STC

[Felix Domke <tmbinc@elitedvb.net>]

Johannes Stezenbach wrote:
> Proposal:
>
> I want to keep it simple. What I need is:
>
>   struct dmx_stc {
>           uint     num; /* input: which STC? 0...n */
>           uint64_t stc; /* output */
>   };
>   #define DMX_GET_STC  _IOWR('o', 50, struct dmx_stc)
Some hardware supports generating an interrupt on a specific STC, and 
generally i think polling the STC from userspace is a bad idea.

Maybe some DMX_SET_STC_NOTIFY (with same structure) together with a 
POLLPRI (or something like this) which fires when the STC matches? (or 
even a blocking DMX_WAIT_STC)

felix



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