Timestamps support via SoapySDR

As it happens, I have my code set up to grab the SDR configuration from a command file; here are my settings:
master_clock_rate 307.2e6
sample_rate 15.36e6
rx_bufsize 131072
rx_timeout 10000000000
rx_frequency 921.6e6
rx_port LNAL
rx_bandwidth 130e6
rx_gain 10
tx_bufsize 1024
tx_time 2000000
tx_timeout 10000000000
tx_frequency 921.6e6
tx_port BAND1
tx_bandwidth 130e6
tx_gain 10
num_bursts 1
output_file /home/kdoherty/Desktop/output.csv
input_file /home/kdoherty/Desktop/input.csv

I do not have the TX and RX buffer sizes the same, nor do I have any silence before or after the TX burst (I expect all 1024 samples to go, and nothing else). RX starts at time zero, and I send exactly one TX burst (presumably at tx_time), then close the stream.

I believe I’m in SISO mode - at least, I don’t set up anything but TX and RX channel 0.

I do not call readStreamStatus, but will add calls to my code.

Thanks for your advice -