v_config.c: In function ‘check_device’:
v_config.c:371:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
v_config.c:372:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
v_config.c:373:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
v_config.c:374:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
