Hi,
> So your BT controller is BTH1 (BCM2E55).
> The ACPI table for this BTH1 looks good (1 irq + 2 gpios ) so it should be
> compatible with hci_bcm.
I can confirm that it is compatible with hci_bcm; Bluetooth is indeed
fully working using the bluetooth-next tree on the ThinkPad Tablet 8.
Thanks again Marcel to have applied the patch and Loic to have helped
me find the right ACPI ID.
Maybe this is a naive question about ACPI ID, and not specific to
Broadcom by the way: could there be a more generic way to gather ACPI
IDs used by new devices and add them to the kernel on a regular basis?
They seem to be added almost one by one mainly upon user reports when
looking at the mailing list. So Bluetooth doesn't work out-of-the-box
on some systems which would be compatible otherwise, especially the
less popular ones. Is there no existing driver list to re-use perhaps?
> Now, you can run btattach (bluez tool):
> $ btattach -B /dev/ttySX -P bcm
Indeed, it is working fine with ttyS1 and the correct binary firmware
stored at /lib/firmware/brcm/BCM.hcd:
# btattach -B /dev/ttyS1 -P bcm
Attaching BR/EDR controller to /dev/ttyS1
Switched line discipline from 0 to 15
Device index 0 attached
Finally, is btattach the only command recommended and supported moving
forward, or should hciattach work as well with that specific
chipset/tablet (as a transition until most Linux distros switch to
btattach)?
Regards,
Jérôme
P.S. for information if it can be useful to someone else:
> And check that hci0 has been created
> $ hciconfig
$ hciconfig -a
hci0: Type: BR/EDR Bus: UART
BD Address: B0:10:41:B8:16:6C ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING
RX bytes:110596 acl:4422 sco:0 events:328 errors:0
TX bytes:35333 acl:36 sco:0 commands:273 errors:0
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH SNIFF
Link mode: SLAVE ACCEPT
Name: 'thinkpad8'
Class: 0x10011c
Service Classes: Object Transfer
Device Class: Computer, Unknown (reserved) minor device class
HCI Version: 4.0 (0x6) Revision: 0x3492
LMP Version: 4.0 (0x6) Subversion: 0x4606
Manufacturer: Broadcom Corporation (15)
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