Re: [Bluez-users] Keyboard woe

[Marcel Holtmann <marcel@holtmann.org>]

Hi John,

> I've just picked up a luggable bluetooth keyboard for use with a cellphone, 
> but I'd like to get it going under linux. This is proving to be a challenge.
> 
> So far the USB bluetooth dongle seems to work fine, and I can gather 
> information about the keyboard, ie:
> 
> > hcitool inq
> Inquiring ...
>         00:0A:3A:30:D4:40       clock offset: 0x60be    class: 0x001f00
> > hcitool info 00:0A:3A:30:D4:40
> Requesting information ...
>         BD Address:  00:0A:3A:30:D4:40
>         Device Name: KEYBOARD
>         LMP Version: 1.1 (0x1) LMP Subversion: 0x2c2
>         Manufacturer: Cambridge Silicon Radio (10)
>         Features: 0xbc 0x06 0x07 0x00 0x00 0x00 0x00 0x00
>                 <encryption> <slot offset> <timing accuracy> <role switch>
>                 <sniff mode> <RSSI> <channel quality> <CVSD> <paging scheme>
>                 <power control>
> 
> After some reading I discover that I need to get going hidd to use the 
> keyboard and I'd need to connect manually first to perform pairing. (This I 
> find in the Debian readme, but no where else - is there documentation I'm 
> missing?)
> 
> The first time I run hidd --connect 00:0A:3A:30:D4:40 it fails with an oblique 
> error message about not being able to open an input device. I have to run 
> strace to find out which (/dev/input/uinput) then grep the kernel source to 
> work out which module needs building (CONFIG_INPUT_UNINPUT).  Again - have I 
> missed some vital piece of documentation, here, because googling was rather 
> unreliable...
> 
> Now, when I run it, I get a connection, but I'm a bit lost as to what ought to 
> happen. What I'm getting is every key press on the bluetooth keyboard 
> producing an unknown event code, ie:
> 
> > hidd --connect 00:0A:3A:30:D4:40
> Connected to 00:0A:3A:30:D4:40 on channel 1
> Press CTRL-C for hangup
> Unknown event code 1
> Unknown event code 64
> Unknown event code 2
> Unknown event code 3
> Unknown event code 4
> 
> (String was 1234)
> 
> What _should_ be happening?
> 
> And what can I do to produce some debugging output of use to any developers on 
> the list?

please get us the SDP records for this device. Use sdptool with "browse"
or "records" commands to fetch them. You might have a non-HID device
that needs special support in hidd.

Regards

Marcel



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