This is necessary to esatablish a working connection to the RFSpace
CloudIQ. Without this delay the radio will not be ready and we never
receive any response to the queries and the radio will close the
connection after 5 seconds.
Usage example:
osmocom_fft -a sdr-iq=/dev/ttyUSB0
osmocom_fft -a sdr-ip=host[:port]
osmocom_fft -a netsdr=host[:port][,nchan=2]
The following named gain stages are available:
SDR-IQ: ATT: -20 to +10 dB, in 10dB steps
SDR-IP: ATT: -30 to 0 dB, in 10dB steps
The ftdi_sio driver is being used for SDR-IQ. It creates a character
device of the form:
crw-rw---- 1 root dialout 188, 0 Dec 19 22:14 /dev/ttyUSB0
To be able to open the device without root permissions add yourself to
the "dialout" group or do a "chmod 666 /dev/ttyUSB0" after pluggin in.