Staticfree Blog 26 04 2006

Staticfree Blog

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I have been asleep for 16 minutes, and 33 seconds. Before that, I was at home.

Wed, 26 Apr 2006

Zoom 4312 PC Card Bluetooth Adapter

/linux/ @ 23:47 on Wed, 2006-04-26

I just got a Zoom 4312 PC Card Bluetooth Adapter for my laptop, as I wasn't lucky enough to get a laptop with it built-in. For the Google record (because I wasn't able to find this information anywhere): this card works in Linux (tested in 2.6.15+), using the BlueZ Bluetooth stack and the hci_uart module. It is unfortunately a Bluetooth v1.1 card, but I've yet to find a PCMCIA Bluetooth adapter that had anything better. Additionally, this card is a clone (or rebranding?) of the Billionton PCBTC1 card, so those will work in Linux as well.

To make it go in a 2.6.15+ kernel, just compile the hci_uart and serial_cs (located in: Device Drivers → Character Devices → Serial Drivers → 8250... → 8250 PCMCIA) modules. Then use the hciattach tool to connect the /dev/ttySx device to the HCI.

At the moment, the driver seems to not be able to restore from suspend. Hopefully that will be an easy fix.

Minor note: I initially had trouble, as the BlueZ hci_uart driver doesn't properly depend on serial_cs which provides for the necessary serial port bits that make it go (a bug will be filed).

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