Name
z8530_tx_begin —
Begin packet transmission
Synopsis
void z8530_tx_begin (struct z8530_channel * c);
Arguments
c
The Z8530 channel to kick
Description
This is the speed sensitive side of transmission. If we are called
and no buffer is being transmitted we commence the next buffer. If
nothing is queued we idle the sync.
Note
We are handling this code path in the interrupt path, keep it
fast or bad things will happen.
Called with the lock held.