i am installing a USB to 8CH RS485 Waveshare driver . After typing sudo make, Im getting these errors. Any help would greatly be appreciated.
make[35]: Entering directory '/usr/lib/modules/4.19.122-rt52/build'
make -C /lib/modules/4.19.122-rt52/build M=/usr/lib/modules/4.19.122-rt52/build
^Cmake[39]: *** wait: No child processes. Stop.
make[39]: *** Waiting for unfinished jobs....
make[39]: *** wait: No child processes. Stop.
make[38]: *** [Makefile:5: default] Error 2