8821cu.conf ----------- blacklist rtw88_8821cu options 8821cu rtw_drv_log_level=1 rtw_led_ctrl=1 rtw_vht_enable=1 rtw_power_mgnt=1 broadcom-wl.conf ---------------- disable-evbug.conf ------------------ blacklist evbug nobeep.conf ----------- blacklist pcspkr snd_pcsp.conf ------------- blacklist snd_pcsp