FWIW, I'm getting the same error in another computer with another rig ( IC-703 ) as well.

Here's the trace:

~/ham/hamlib/hamlib-prefix_20200525/bin$ ./rigctld -m 3055 -r /dev/ttyUSB0 -s 19200 -P RTS -vvvvv
main: #1 vfo_mode=0
Recommend using --vfo switch for rigctld if client supports it
rigctl and netrigctl will automatically detect vfo mode
rigctld, Hamlib 4.0~git
Report bugs to <[email protected]>

rig_init called
initrigs4_icom: _init called
rig_register called
rig_register: rig_register (3055)
rig_register called
rig_register: rig_register (3009)
rig_register called
rig_register: rig_register (3010)
rig_register called
rig_register: rig_register (3011)
rig_register called
rig_register: rig_register (3013)
rig_register called
rig_register: rig_register (3014)
rig_register called
rig_register: rig_register (3015)
rig_register called
rig_register: rig_register (3019)
rig_register called
rig_register: rig_register (3020)
rig_register called
rig_register: rig_register (3021)
rig_register called
rig_register: rig_register (3022)
rig_register called
rig_register: rig_register (3067)
rig_register called
rig_register: rig_register (3023)
rig_register called
rig_register: rig_register (3046)
rig_register called
rig_register: rig_register (3024)
rig_register called
rig_register: rig_register (3028)
rig_register called
rig_register: rig_register (3030)
rig_register called
rig_register: rig_register (3026)
rig_register called
rig_register: rig_register (3027)
rig_register called
rig_register: rig_register (3047)
rig_register called
rig_register: rig_register (3057)
rig_register called
rig_register: rig_register (3063)
rig_register called
rig_register: rig_register (3029)
rig_register called
rig_register: rig_register (3062)
rig_register called
rig_register: rig_register (3045)
rig_register called
rig_register: rig_register (3056)
rig_register called
rig_register: rig_register (3075)
rig_register called
rig_register: rig_register (3060)
rig_register called
rig_register: rig_register (3070)
rig_register called
rig_register: rig_register (3061)
rig_register called
rig_register: rig_register (3073)
rig_register called
rig_register: rig_register (3078)
rig_register called
rig_register: rig_register (3031)
rig_register called
rig_register: rig_register (3012)
rig_register called
rig_register: rig_register (3016)
rig_register called
rig_register: rig_register (3032)
rig_register called
rig_register: rig_register (3034)
rig_register called
rig_register: rig_register (3044)
rig_register called
rig_register: rig_register (3068)
rig_register called
rig_register: rig_register (3035)
rig_register called
rig_register: rig_register (3081)
rig_register called
rig_register: rig_register (3069)
rig_register called
rig_register: rig_register (3077)
rig_register called
rig_register: rig_register (3036)
rig_register called
rig_register: rig_register (3058)
rig_register called
rig_register: rig_register (3080)
rig_register called
rig_register: rig_register (3037)
rig_register called
rig_register: rig_register (3038)
rig_register called
rig_register: rig_register (3039)
rig_register called
rig_register: rig_register (3040)
rig_register called
rig_register: rig_register (3041)
rig_register called
rig_register: rig_register (3042)
rig_register called
rig_register: rig_register (3079)
rig_register called
rig_register: rig_register (3043)
rig_register called
rig_register: rig_register (3066)
rig_register called
rig_register: rig_register (3003)
rig_register called
rig_register: rig_register (3004)
rig_register called
rig_register: rig_register (3006)
rig_register called
rig_register: rig_register (3007)
rig_register called
rig_register: rig_register (3002)
rig_register called
rig_register: rig_register (3052)
rig_register called
rig_register: rig_register (3053)
rig_register called
rig_register: rig_register (3051)
rig_register called
rig_register: rig_register (3064)
rig_register called
rig_register: rig_register (3065)
rig_register called
rig_register: rig_register (3054)
rig_register called
rig_register: rig_register (3083)
rig_register called
rig_register: rig_register (3084)
rig_register called
rig_register: rig_register (3082)
rig_register called
rig_register: rig_register (3071)
rig_register called
rig_register: rig_register (3072)
rig_register called
rig_register: rig_register (3074)
rig_register called
rig_register: rig_register (3076)
icom_init called
icom_init: done
rig_open called
port_open called
serial_open called
serial_open: OPEN before
serial_open: OPEN after
serial_open: serial_setup before
serial_setup called
serial_setup: tcgetattr
serial_setup: cfmakeraw
serial_setup: cfsetispeed
serial_setup: cfsetospeed
serial_setup: tcsetattr TCSANOW
serial_open: serial_setup after
serial_open: serial_flush before
serial_flush called
serial_flush: tcflush
serial_open: serial_flush before
ser_set_rts called
ser_set_rts: RTS=0
icom_rig_open 724
icom_rig_open: IC-703 v20200519.0
icom_get_usb_echo_off called
icom_get_usb_echo_off: retry temp set to 1
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 00 40 10 18 00 fd ...h..@....
icom_get_usb_echo_off: ack_len=6
icom_get_usb_echo_off: USB echo on detected
icom_rig_open: satmode=0
rig_get_vfo called
rig_set_parm called
Opened rig model 3055, 'IC-703'
Backend version: 20200519.0, Status: Untested
Connection opened from localhost:49348
sync_callback: client lock engaged
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd=\(5c)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): ð 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd=\(5c)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d):  'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd=v(76)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): v 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_vfo called
rigctl_parse: return#1 RPRT -11
rigctl_parse: retcode=-11
sync_callback: client lock disengaged
handle_socket: rigctl_parse retcode=-11
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=m(6d)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): m 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_mode called
elapsed_ms: start = 0,0
rig_get_mode: cache check age=1000000ms
rig_get_mode: cache miss age=1000000ms
icom_get_mode called vfo=currVFO
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 04 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 04 fd ..h...
read_string called
read_string(): RX 8 characters
0000    fe fe e0 68 04 01 01 fd ...h....
icom_get_mode: modebuf[0]=0x04, modebuf[1]=0x01, mode_len=3
icom2rig_mode: mode=0x01, pd=1
rig_passband_wide called
rig_passband_normal called
icom_get_dsp_flt called
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 7 bytes
0000    fe fe 68 e0 1a 03 fd ..h....
read_string called
read_string(): RX 7 characters
0000    fe fe 68 e0 1a 03 fd ..h....
read_string called
read_string(): RX 6 characters
0000    fe fe e0 68 fa fd ...h..
icom_transaction: failed: Command rejected by the rig
icom_get_mode: vfo=currVFO returning mode=USB, width=2400
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419247,216003269
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=f(66)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): f 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_freq called vfo=currVFO
elapsed_ms: start = 0,0
rig_get_freq: cache check age=1000000ms
rig_get_freq: cache miss age=1000000ms, cached_vfo=None, asked_vfo=currVFO
icom_get_freq called for currVFO
icom_get_freq: CurrVFO changed to None
set_vfo_curr: vfo=None, curr_vfo=None
set_vfo_curr: curr_vfo now=None
icom_get_freq: using vfo=None
rig_set_vfo called
icom_set_vfo called vfo=None
icom_set_vfo: debug#1
icom_set_vfo: debug#2
icom_set_vfo: unsupported VFO None
rig_set_vfo: set_vfo None failed with 'Invalid parameter'
elapsed_ms: start = 0,0
elapsed_ms: elapsed_secs=8.38724e+21
elapsed_ms: start = 1590419247,216232724
elapsed_ms: elapsed_secs=8.38724e+21
elapsed_ms: start = 1590419247,216003269
elapsed_ms: elapsed_secs=8.38724e+21
rig_set_vfo: return -1, vfo=None
icom_get_freq: set_vfo failed? retval=Invalid parameter
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 00 40 10 18 00 fd ...h..@....
from_bcd called
icom_get_freq: unknown VFO?  VFO=None
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419247,247925353
rig_get_freq: cache reset age=999000ms, vfo=currVFO, freq=18104000
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=F(46)
rigctl_parse: debug1
rigctl_parse: debug3
rigctl_parse: debug4
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): F 'currVFO' '18104055.000000' '' ''
rigctl_parse: vfo_mode=0
rig_set_freq called
icom_set_freq called currVFO=18104055.000000
icom_set_default_vfo: called, curr_vfo=None
icom_set_default_vfo: setting default as VFOA
rig_set_vfo called
icom_set_vfo called vfo=VFOA
icom_set_vfo: debug#1
icom_set_vfo: VFO changing from None to VFOA
icom_set_vfo: debug#2
icom_set_vfo: debug#3
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 7 bytes
0000    fe fe 68 e0 07 00 fd ..h....
read_string called
read_string(): RX 7 characters
0000    fe fe 68 e0 07 00 fd ..h....
read_string called
read_string(): RX 6 characters
0000    fe fe e0 68 fb fd ...h..
icom_set_vfo: debug#4
icom_set_vfo: debug#5
icom_get_freq called for VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq: using vfo=VFOA
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 00 40 10 18 00 fd ...h..@....
from_bcd called
rig_set_vfo: retcode from rig_get_freq = Command completed successfully
elapsed_ms: start = 1590415647,216291332
elapsed_ms: elapsed_secs=8.38722e+21
elapsed_ms: start = 1590419247,247925353
elapsed_ms: elapsed_secs=8.38722e+21
elapsed_ms: start = 1590415647,216313904
elapsed_ms: elapsed_secs=8.38722e+21
rig_set_vfo: return 0, vfo=VFOA
icom_set_freq: currVFO asked for so vfo set to VFOA
icom_set_freq: set_vfo_curr=VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq called for currVFO
icom_get_freq: CurrVFO changed to VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq: using vfo=VFOA
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 00 40 10 18 00 fd ...h..@....
from_bcd called
to_bcd called
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 11 bytes
0000    fe fe 68 e0 05 55 40 10 18 00 fd ..h..U@....
read_string called
read_string(): RX 11 characters
0000    fe fe 68 e0 05 55 40 10 18 00 fd ..h..U@....
read_string called
read_string(): RX 6 characters
0000    fe fe e0 68 fb fd ...h..
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419247,375923216
rigctl_parse: return#2 RPRT 0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=F(46)
rigctl_parse: debug1
rigctl_parse: debug3
rigctl_parse: debug4
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): F 'currVFO' '18104000.000000' '' ''
rigctl_parse: vfo_mode=0
rig_set_freq called
icom_set_freq called currVFO=18104000.000000
icom_set_freq: currVFO asked for so vfo set to VFOA
icom_set_freq: set_vfo_curr=VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq called for currVFO
icom_get_freq: CurrVFO changed to VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq: using vfo=VFOA
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 55 40 10 18 00 fd ...h.U@....
from_bcd called
to_bcd called
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 11 bytes
0000    fe fe 68 e0 05 00 40 10 18 00 fd ..h...@....
read_string called
read_string(): RX 11 characters
0000    fe fe 68 e0 05 00 40 10 18 00 fd ..h...@....
read_string called
read_string(): RX 6 characters
0000    fe fe e0 68 fb fd ...h..
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419247,439836901
rigctl_parse: return#2 RPRT 0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=s(73)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): s 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_split_vfo called
rigctl_parse: return#1 RPRT -11
rigctl_parse: retcode=-11
sync_callback: client lock disengaged
handle_socket: rigctl_parse retcode=-11
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=v(76)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): v 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_vfo called
rigctl_parse: return#1 RPRT -11
rigctl_parse: retcode=-11
sync_callback: client lock disengaged
handle_socket: rigctl_parse retcode=-11
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=q(71)
rigctl_parse: quit returning NETRIGCTL_RET 0
handle_socket: rigctl_parse retcode=1
Connection closed from localhost:49348
Connection opened from localhost:49350
sync_callback: client lock engaged
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd=\(5c)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): ð 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd=\(5c)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d):  'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd=v(76)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): v 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_vfo called
rigctl_parse: return#1 RPRT -11
rigctl_parse: retcode=-11
sync_callback: client lock disengaged
handle_socket: rigctl_parse retcode=-11
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=m(6d)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): m 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_mode called
elapsed_ms: start = 1590415647,312064968
elapsed_ms: elapsed_secs=3.60116e+06
rig_get_mode: cache check age=3601163ms
rig_get_mode: cache miss age=3601163ms
icom_get_mode called vfo=currVFO
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 04 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 04 fd ..h...
read_string called
read_string(): RX 8 characters
0000    fe fe e0 68 04 01 01 fd ...h....
icom_get_mode: modebuf[0]=0x04, modebuf[1]=0x01, mode_len=3
icom2rig_mode: mode=0x01, pd=1
rig_passband_wide called
rig_passband_normal called
icom_get_dsp_flt called
icom_get_mode: vfo=currVFO returning mode=USB, width=2400
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419248,511274645
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=f(66)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): f 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_freq called vfo=currVFO
elapsed_ms: start = 1590415647,312058338
elapsed_ms: elapsed_secs=3.6012e+06
rig_get_freq: cache check age=3601199ms
rig_get_freq: cache miss age=3601199ms, cached_vfo=currVFO, asked_vfo=currVFO
icom_get_freq called for currVFO
icom_get_freq: CurrVFO changed to VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq: using vfo=VFOA
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 00 40 10 18 00 fd ...h..@....
from_bcd called
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419248,543245252
rig_get_freq: cache reset age=999000ms, vfo=currVFO, freq=18104000
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=F(46)
rigctl_parse: debug1
rigctl_parse: debug3
rigctl_parse: debug4
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): F 'currVFO' '18104055.000000' '' ''
rigctl_parse: vfo_mode=0
rig_set_freq called
icom_set_freq called currVFO=18104055.000000
icom_set_freq: currVFO asked for so vfo set to VFOA
icom_set_freq: set_vfo_curr=VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq called for currVFO
icom_get_freq: CurrVFO changed to VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq: using vfo=VFOA
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 00 40 10 18 00 fd ...h..@....
from_bcd called
to_bcd called
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 11 bytes
0000    fe fe 68 e0 05 55 40 10 18 00 fd ..h..U@....
read_string called
read_string(): RX 11 characters
0000    fe fe 68 e0 05 55 40 10 18 00 fd ..h..U@....
read_string called
read_string(): RX 6 characters
0000    fe fe e0 68 fb fd ...h..
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419248,607151806
rigctl_parse: return#2 RPRT 0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=F(46)
rigctl_parse: debug1
rigctl_parse: debug3
rigctl_parse: debug4
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): F 'currVFO' '18104000.000000' '' ''
rigctl_parse: vfo_mode=0
rig_set_freq called
icom_set_freq called currVFO=18104000.000000
icom_set_freq: currVFO asked for so vfo set to VFOA
icom_set_freq: set_vfo_curr=VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq called for currVFO
icom_get_freq: CurrVFO changed to VFOA
set_vfo_curr: vfo=VFOA, curr_vfo=VFOA
set_vfo_curr: curr_vfo now=VFOA
icom_get_freq: using vfo=VFOA
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 6 bytes
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 6 characters
0000    fe fe 68 e0 03 fd ..h...
read_string called
read_string(): RX 11 characters
0000    fe fe e0 68 03 55 40 10 18 00 fd ...h.U@....
from_bcd called
to_bcd called
serial_flush called
serial_flush: tcflush
write_block called
write_block(): TX 11 bytes
0000    fe fe 68 e0 05 00 40 10 18 00 fd ..h...@....
read_string called
read_string(): RX 11 characters
0000    fe fe 68 e0 05 00 40 10 18 00 fd ..h...@....
read_string called
read_string(): RX 6 characters
0000    fe fe e0 68 fb fd ...h..
elapsed_ms: start = 0,0
elapsed_ms: after gettime, start = 1590419248,671102633
rigctl_parse: return#2 RPRT 0
rigctl_parse: retcode=0
sync_callback: client lock disengaged
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=s(73)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): s 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_split_vfo called
rigctl_parse: return#1 RPRT -11
rigctl_parse: retcode=-11
sync_callback: client lock disengaged
handle_socket: rigctl_parse retcode=-11
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=v(76)
rigctl_parse: debug1
rigctl_parse: debug5
rigctl_parse: debug10
sync_callback: client lock engaged
rigctl(d): v 'currVFO' '' '' ''
rigctl_parse: vfo_mode=0
rig_get_vfo called
rigctl_parse: return#1 RPRT -11
rigctl_parse: retcode=-11
sync_callback: client lock disengaged
handle_socket: rigctl_parse retcode=-11
handle_socket: vfo_mode=0
rigctl_parse: called, interactive=1
rigctl_parse: cmd= (0a)
rigctl_parse: cmd=q(71)
rigctl_parse: quit returning NETRIGCTL_RET 0
handle_socket: rigctl_parse retcode=1
Connection closed from localhost:49350

'Kari

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