[dvblast-devel] SAA7146 driver fix for better PCR accuracy and finer IP granularity

[Petr Hroudný]

> The SAA7146 register could be tuned as needed. So if you need even
> better granularity, set it to lower value, but watch your CPU and
> number of interrupts per second. The effect of this register
> is that SAA7146 triggers an interrupt after receiving the specified
> amount of data (and thus kernel delivers it to the application):
>
> 0x90 ...  64 kB
> 0x80 ...  32 kB
> 0x70 ...  16 kB
> 0x60 ...   8 kB
> 0x50 ...   4 kB
> 0x40 ...   2 kB
> 0x30 ...   1 kB

Very useful !
Our DVB-T stations work best with 2 kB setting: single packet
granularity and only a little CPU increase.

Petr