Debian process has hundreds of processes

[jyijyi]

Of course you need to compile the USB driver by yourself.
there is no binary for the USB driver is because different linux having different kernel version.

what are you trying to do actually?
initially you just asked about the USB driver, now suddenly you are talking about lite and fwdwl binaries

For how to establish data connection with AT!SCACT or MBPL SDK, you can see here:

Example on establishing data connection by AT!SCACT via MBPL R20 driver

Here is an example to establish data connection by AT!SCACT via MBPL R20 driver: Module: WP7609 FW: R13 MBPL: R20 PC Environment: Ubuntu 18 need to install the MBPL R20 driver for qmi_wwan and qcserial (MBPL_Drivers_USB_R20_ENG1-src.tar.gz) avoid the Ubuntu changing the network name: ln -s /dev/null /etc/systemd/network/99-default.link sudo apt-get install libqmi-utils sudo apt-get install udhcpc now insert the USB to PC sudo chmod 777 /sys/class/net/wwan0/qmi/raw_ip …