Ortwin Glück schrieb: >> Can I switch the HID mode? > > You sound a little confused (okay, the architecture is not exactly well > documented). HCI is the low-level bluetooth device. I wouldn't say it's > even a protocol. It's rather the hardware interface. It controls the > immediate BT hardware stuff. The hcitool can issue most HCI commands to > such a device. > > Bluetooth supports several transport layers: UART, RS232 and USB. For us > only USB is relevant. See hciconfig.
Ok, I understand.
> HID is a USB device class and as such a Bluetooth "profile". All mice
> and keyboards use that.
Ok. But as I understand HID is very basic. If you want to use all features of
a device, you have to use the devices "own" protocol.
(To query the battery status for instance).
What does the 'boot-protocol' mean, what are the other protocol types?
If I switch a device from HID mode to HCI, does the device give the plain USB
data?
Does the HID protocol have support for the scroll-wheel?
> hid2hci is only used for dongles. Some Logitec mice for instance come
> with a cradle.The cradle is connected to an USB port in your PC and has
> a bluetooth device built-in. Or you may have a Bluetooth USB stick,
> because your laptop comes with no Bluetooth onboard. Both are dongles.
> The mouse so speaks with the dongle only.
> In such a setup the dongle by default acts as a (USB) HID device: i.e.
> it transparently forwards the mouse data as if the mouse was directly
> connected to the USB port.
If you look a the source-code of 'hid2hci' you will see the following:
{ HCI, 0x05ac, 0x1000, switch_hidproxy },
{ HID, 0x05ac, 0x8203, switch_hidproxy },
{ HID, 0x05ac, 0x8204, switch_hidproxy }, /* Apple Mac mini */
{ HID, 0x05ac, 0x8207, switch_hidproxy }, /* Apple Power Mac G5 */
It seems, that you can switch (at least on the upper Macs) between the HID and
HIC mode. What is this for, when you do not need to switch?
> If in such a setup you want to configure the pairing for instance, you
> must switch the dongle to HCI mode. So the OS sees the Bluetooth device
> (connected over USB). That's what hid2hci is for. Nothing else.
>
> In my case, I don't have a dongle.
I do not have a dongle neither.
>> See first mail. Did not work. For logitech devices there are some special
>> commands, maybe we need some for Apple too?!
>
> Don't know what "special" commands those could be.
For logitech those are some special HID specific ioctls.
>> Ok, my fault. I need the IDs of the Mac's bluetooth device.
>
> No idea what you want with that, but what do I care:
To cross-check...
>> But as you can see, your's operating in HID mode too...
>
> Of course. There is no other possibility.
Are you sure? How do you query the battery status in HID mode?
At least (your) MightyMouse has this feature.
> You may want to check the data that your mouse sends with hcidump, as I
> have demonstrated on my aforementioned site. If you can see the scroll
> events, then your BT setup is correct. Next step is to fix the mapping
> the depths of the kernel and Xorg.... My rough guess is that the Xorg
> drivers screw it up.
Ok, same idea I had (after reading this mail). I will try these!
I think the HID mouse will use this entry in my xorg.conf:
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ExplorerPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection
There is a ZAxisMapping set and on a normal USB mouse (connected in parallel)
it works perfectly!
I will play with that tonight!
Thanks for your exhaustive answers!
Regards
Sven
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