radioInterface: Reset sample buffer cursors on each start

Non-zero buffer indices may lead to uplink/downlink timing offset
during repeated start/stop cycles. Mainly affects USRP2 and other
resampled devices that rely on the buffer to absorb sample block
sizes that are not multiples of the burst size.

Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
1 file changed