If we actually expect 3rd party applications to use libosmo-e1d to talk
to osmo-e1d, we'd better add some basic documentation on how this API
shall be used.
There is non negligible time between the moment init_timeslot is
called and the moment when we get the first RX (which is when
we start sending out data at the same rate we RX it). And those
1024 byte were borderline not enough to not underflow.
By delaying the 1024 byte pre-fill until we get the first RX,
we ensure the time that pre-fill covers is more consistant and
less dependend on whatever the app/scheduling does during the
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
e1-prbs-test is a small utility that can be used to do PRBS testing
on E1/T1 lines using DAHDI cards. A transmiter and receiver are
exchanging timeslot-specific PRBS sequences.