[asterisk-dev] Re: Kernel modules => mainline kernel

[Khelik Mikhail]

> > Why? Just turn off interrupts on all the cards, and poll them every
> > 1ms. Then you can call zt_transmit and zt_receive on all of them in
> > order.
>
> In *different* drivers? Can you elaborate how one driver can
> poll cards handled by a different driver?
>
> That's why my original post highlighted the lack of a global
> zaptel "tick" that calls the low level drivers.
>
> Such (not existing yet) mechanism would make your claim valid.

Actually to make it feasible all TDM devices in system should be
synchronized by TDM bus, because all devices use a clock generators
with different parameters, so you'll experience regular slips or skips
without true hardware synchronization.