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GNU/Linux Basic Guide
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Reviews
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Date of last review
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1
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46994
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01-23-2006
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Recommended By
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Average Price
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Average Rating
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100% of reviewers
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None indicated
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None indicated
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Description:
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Use a bluetooth-keyboard only for all tasks (without the need of an additional keyboard connected via cable while in BIOS or boot-manager)
OS:
SUSE Linux 9.2 32bit
software:
bluez-libs-2.10-2
bluez-utils-2.10-15
(kdebluetooth-0.0.cvs20050131-5)
Bluetooth-Adaptor:
D-Link DBT-120 (USB)
If the DBT-120 is at least Rev. 2, you can update the firmware on it (using an Apple-Computer). This allows you to use the Apple Wireless Keyboard already at boot-time bevor any bluetooth-stack is loaded.
On power-up it will work as a HID-proxy. That means it will establish the connection to the Apple Wireless Keyboard (and should do with a bluetooth-mouse as well, but I haven't tested that) without pairing and present it to the System as an ordinary USB-keyboard
(or USB-mouse).
In this mode you can already use your Apple Wireless Keyboard with every OS that supports USB-keyboards.
If you want to use the DBT-120 to connect other bluetooth-devices as well, you need to switch it from HID- to HCI-mode. Under Linux use:
hid2hci --tohci
That has to be done once every time you boot linux.
(Under Windows I used a tool call hidtohci.exe, available from another bluetooth-keyboard-manufacturer. Worked fine with my hardware. I don't remember where I found it, just google for it)
The very first time you do that, you need to pair the DBT-120 and the Apple Wireless Keyboard. I don't remember exactly what I did to accomplish that (have a look at the documentation that comes with bluez.utils, especially at README.keyboard mouse), but it was tricky, because i had to blindly hack the PIN after I first connected the Apple Wireless Keyboard with
hidd -c
If you wait to long (some seconds), the pairing might fail.
If that all works, make sure you have configured the hci-daemon (hcid) to become master on incoming connections.
(The Apple Wireless Keyboard falls in sleep mode if you don't use it for a while. A single press of a key wakes it up and lets it try to reconnect to the DBT-120. That will fail without forcing hcid to switch to master)
For that my /etc/bluetooth/hcid.conf looks contains the following line:
lm master;
I'm not sure, which of the following lines are critical for the Apple Wireless Keyboard to work properly. Start with the defaults and change one by one until everything works:
autoinit yes;
security auto;
pairing multi;
class 0x100100;
iscan enable;
pscan enable;
lp rswitch,hold,sniff,park;
auth disable;
encrypt disable;
I bought my bt-hardware in July 2004 and I'm not sure if it works with your gear.
The Updater can be found here:
http://www.apple.com/support/downloa...updater12.html
This is a description of the update:
http://docs.info.apple.com/article.html?artnum=86493
(Apple claims that the DBT-120 will get incompatible with non-Macs afterwards. This is WRONG. But you need to switch it from HID- to HCI-mode as mentioned bevor.)
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Keywords:
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bluetooth bt keyboard
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Connection Type:
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bluetooth
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01-23-2006, 02:09 PM
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#1
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Registered: Apr 2005
Distribution: Gentoo
Posts: 9
Rep: 
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Would you recommend the product? yes | Price you paid? (in USD): None indicated | Rating: 0
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Kernel (uname -r):
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Distribution:
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Excellent information, than you very much!
If someone could confirm dbt-120 compatibility in hci-mode with Logitech's V270 mouse, I'd be grateful. Allso information of flashing without mac would be appreciated. |
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