7 Mar
2022
7 Mar
'22
4:44 a.m.
When I use rfkill to block hci0, the dmesg messages stop. But they resume when it is unblocked. Removing an associated kernel module isn't presently easy: $ sudo rmmod bluetooth rmmod: ERROR: Module bluetooth is in use by: btrtl btqca btsdio btintel hci_uart btbcm bnep rfcomm $ sudo rmmod btbcm rmmod: ERROR: Module btbcm is in use by: hci_uart $ sudo rmmod hci_uart rmmod: ERROR: Module hci_uart is in use Not sure what it means when it doesn't say what it's in use by, but presumably something userspace?