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EVK-R6 and EVK-L6 - User guide
UBX-21035387 - R03 Appendix Page 18 of 27
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B.3 Setting up cellular packet data connection on Linux
This section describes how to set up a packet data connection on Linux (reference OS: Ubuntu 22.04)
on a PC connected with EVK-R6 and EVK-L6 over the USB interface of the modules. Follow the board
setup instructions described in section
1.8 to provide communication via the USB interface of the
modules. Use minicom or similar program to send AT commands via USB.
1. LARA-R6 and LARA-L6 use a non-standard USB specific class (Vendor Specific USB class). To
enumerate correctly on Linux hosts, use
option driver:
/lib/modules/<kernel_version>/kernel/drivers/usb/serial/option.c
.
To check if the module is correctly enumerated, for LARA-R6 use
lsusb -t -d 05c6:908b;
for
LARA-L6 in default mode, use
lsusb -t -d 1546:1341
.
2. Identify the ttyUSB* ports by
ls /dev/ttyUSB*
and then launch minicom to use this port. LARA-
R6 enumerates the port as ttyUSB0: diagnostic, ttyUSB1/ttyUSB2: AT interface, ttyUSB3: GNSS
tunneling/AT interface varying on the +USIO configuration. In the example below,
ttyUSB1 is
used.