In theory the firmware is supposed to power off the bluetooth card when we use rfkill to block it. This doesn't work on a lot of laptops though, leading to weird issues after turning off bluetooth, like the connection timing out on the peripherals which were connected, and bluetooth not connecting properly when the adapter is turned on again quickly after rfkilling. This series hooks into the rfkill driver from the bluetooth subsystem to send a HCI_POWER_OFF command to the adapter before actually submitting the rfkill to the firmware and killing the HCI connection. --- v1 -> v2: Fixed commit message title to make CI happy Jonas Dreßler (4): Bluetooth: Remove HCI_POWER_OFF_TIMEOUT Bluetooth: mgmt: Remove leftover queuing of power_off work Bluetooth: Add new state HCI_POWERING_DOWN Bluetooth: Queue a HCI power-off command before rfkilling adapters include/net/bluetooth/hci.h | 2 +- net/bluetooth/hci_core.c | 33 ++++++++++++++++++++++++++++++--- net/bluetooth/hci_sync.c | 16 +++++++++++----- net/bluetooth/mgmt.c | 30 ++++++++++++++---------------- 4 files changed, 56 insertions(+), 25 deletions(-) -- 2.43.0
