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e. Save the original Makefile and create a new Makefile that contains the only rule for
option.o:
obj-m += option.o
f.
Change the directory:
# cd /lib/modules/3.16.0-x-generic/build
g. Build the driver by issuing the following command:
# sudo make -C /lib/modules/3.16.0-x-generic/build/
M=/usr/src/linux-headers-3.16.0-x-generic/drivers/usb/serial/
4.
Add or replace option.ko in system modules directory:
a. Check if option.ko is loaded by issuing the following command:
# lsmod | grep option.ko
b. If the output shows "option" loaded, then remove or unload it by issuing the following
command:
# sudo modprobe -r option
c. Copy the build by issuing the following command:
# sudo cp /usr/src/ linux-headers-3.16.0-x-
generic/drivers/usb/serial/option.ko /lib/modules/3.16.0-
x.generic/kernel/drivers/usb/serial/
d. Deploy the build by issuing the following command:
# sudo depmod -a
To enable the Modem Interface:
1.
Verify that your device is in End-User Mode by issuing the following command:
# lsusb
If the device is in End-User Mode, the response is:
ID 1410:9020 Novatel Wireless
2.
If the device is in End-User Mode, uninstall the RNDIS driver by issuing the following command:
# sudo rmmod rndis_host
3.
Switch the device to Enterprise Mode configuration by issuing the following command:
# sudo usb_modeswitch –v 0x1410 –p 0x9020 –u 4
U620L Linux Integration Guide
9
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