From windows, I can see the wireless chip used on Dell Venue 11 Pro is "Dell Wireless 1538". I assume the Bluetooth chip is AR3002. But I’m failed to drive the Bluetooth working with Linux ath3k driver and ath3k-1.fw firmware. $hciattach /dev/ttyS1 ath3k 115200 flow Initialization timed out % hciattach /dev/ttyS1 any 115200 flow Device setup complete But dmesg shows: Bluetooth: hci0 command 0x1001 tx timeout Bluetooth: hci0 command 0x1009 tx timeout % hcitool dev Devices: Looks the Bluetooth setup is not successful. I have already added the ACPI-ID of this device ("DLAC3002") in my kernel. --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -36,6 +36,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = { { "BCM2E1A" }, { "BCM2E39" }, { "BCM2E3D" }, + { "DLAC3002" } --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -161,6 +161,7 @@ static const struct acpi_device_id rfkill_acpi_match[] = { { "BCM2E1A", RFKILL_TYPE_BLUETOOTH }, { "BCM2E39", RFKILL_TYPE_BLUETOOTH }, { "BCM2E3D", RFKILL_TYPE_BLUETOOTH }, + { "DLAC3002", RFKILL_TYPE_BLUETOOTH }, { "BCM4752", RFKILL_TYPE_GPS }, { "LNV4752", RFKILL_TYPE_GPS },
Same here, on Venue 8 Pro. Actually, the protocol Windows is using is H4, nevertheless, it doesn't work also. This snippet from DSDT table (BTH0 entry, DLAC3002) specifies the UART settings that Windows (supposedly) uses: UartSerialBus (0x0001C200, DataBitsEight, StopBitsOne, 0xC0, LittleEndian, ParityTypeNone, FlowControlHardware, 0x0020, 0x0020, "\\_SB.URT1", 0x00, ResourceConsumer, ,) URT1 is /dev/ttyS4 in my config, the interesting thing is that there's no bytes inbound at all - looks like the BT module is simply unpowered, no matter if I attach an rfkill-gpio (like Jin above), or drive GPIOs manually (via /sys/bus/gpio). So, it's unlikely a kernel bug (and may be closed as such). Jin. had you ever succeed in getting this piece working?
Same here, not working on Venue 8 Pro. Adding the ACPI ID doesn't result in anything.
Forgot to mention, this was tested on kernel 4.4.