View source for IBM Integrated Bluetooth III with 56K Modem (BMDC-2)

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=== IBM Integrated Bluetooth III with 56K Modem (BMDC-2) ===
This is a combination USB Bluetooth and AC'97 Modem Adapter that is installed in a [[CDC slot]].

=== Features ===
* Chipset: CSR BlueCore02 Bluetooth Controller and Conexant SmartV.92 Softmodem DSP
* Speeds: 434/723 Kbps (Bluetooth 1.1) and 33.6/56.6 Kbps (V.34/V.90/V.92/K56flex)
* PCI ID: Varies, depends on the AC'97 modem controller's PCI ID
* USB ID: 1668:2441
* Headers: One 2-pin connector, one Hirose U.FL connector
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=== Part numbers ===
* 93P3471, 91P7319, 27R1880

=== Linux driver ===
This card's Bluetooth controller will work with the standard Linux Bluetooth drivers ('''btusb''') with the [http://www.bluez.org/ BlueZ protocol stack]. For the built-in softmodem, have a look at the [[Conexant HSF modem drivers]] page for more details.

On recent distributions, you can enable/disable the Bluetooth controller with '''echo 1 > /sys/devices/platform/thinkpad_acpi/bluetooth_enable''' if you have the '''thinkpad_acpi''' kernel module installed. If you don't, use the {{key|Fn}}{{key|F5}} combination instead, as it relies on the embedded controller to work.

=== Problems ===
There is an issue regarding connectivity with the built-in softmodem, likely due an outdated K56flex firmware. See [[Need_to_disable_V90/V92/56K_modem_speed|Need to disable 56K modem speed]] for a workaround.

== This card may be found in ==
* {{T42}}, {{T42p}}
* {{X40}}
* {{R51}}

[[Category:Bluetooth Adapters]] [[Category:Modem Devices]]