You can refer to the link below to acquire uart application, you can use gcc or Cross-compile with cross-gcc.

Type 'sudo make uninstall' to remove the driver.Type 'sudo make install' to make the driver work permanently.Type 'sudo make unload' or 'sudo rmmod ch343.ko' to unload the driver.Type 'sudo make load' or 'sudo insmod ch343.ko' to load the driver dynamically.Compile the driver using 'make', you will see the module 'ch343.ko' if successful. This driver supports USB to single serial port chip ch343/ch9101/ch9102/ch9143, USB to dual serial ports chip ch342/ch347/ch9103, USB to quad serial ports chip ch344, etc. You can use command 'ls /dev/ttyACM*' to confirm that, to remove the CDC-ACM driver, use command 'rmmod cdc-acm'. If you use this VCP driver, please check that the CDC-ACM driver was not installed for the USB UART devices mentioned above. Because of this, device manufacturers can create an alternate, or custom driver that is capable of accessing the device specific function sets, such as hardware flow control or GPIO functions. This generic driver does not have any knowledge about specific device protocols. The CDC-ACM driver has limited capabilities to control specific devices. In Linux, this driver file name is cdc-acm. Linux operating systems supply a default CDC-ACM driver that can be used with these USB UART devices. USB to UART(s) chip ch342/ch343/ch344/ch347/ch9101/ch9102/ch9103/ch9143 are fully compliant to the Communications Device Class (CDC) standard, they will work with a standard CDC-ACM driver (CDC - Abstract Control Model).

Install cdc acm driver linux