I'm having a problem finding support in BlueZ for a Socket Communications
CF+ Bluetooth card, which is a later version using the CSR chipset and not
the Nokia DTL-1 chipset as used in earlier versions of the same card. The
Nokia-based card is supported in BlueZ using the dtl1_cs.o module but the
CSR-based card is not. Does anyone know if there are any plans to support
CSR-based PCMCIA/CF cards?
If not, I will go and buy a USB Bluetooth dongle instead as these seem to
better supported, and the external antenna possibly works better too. The
only reason I would like to use the Socket CF card is because I already have
one in my Jornada PDA (runs Windows CE) and sharing the Bluetooth device
between PDA and Linux laptop means less to carry around.
One thing puzzles me - back in March this year, Erwin Authried wrote in
this mailing list that PCMCIA/CF UARTs are register-compatible emulations
of a standard UART (see original mail below). Does this mean that I could
be using just the serial_cs.o kernel module for the Socket CF+ card? All I
want to use Bluetooth for at this stage is to interface my laptop to a
Bluetooth phone so I can connect to the 'Net via GPRS or PPP/dial-up while
I'm away from base (mainly to ssh into remote servers, etc). I do this
already from my PDA but a laptop would be nicer.
Thanks in advance for any suggestions,
Andy
Original archive posting follows:
On Sat, 2005-03-05 at 06:37, Mathias Adam wrote:
> Hi,
>
> I just got it working by doing a little change in the serial driver
> (8250.c). I tested it with 2.6.11 but I think it could work for any 2.6
> kernel.
>
> Marcel Holtmann schrieb:
> > I am not an serial card expert. This is a problem in the serial
> > subsystem and a BlueZ problem.
>
> That proved to be true.
>
> Marcel: One thing I discovered while debugging this: the hci_uart
driver
> seems to initialize the actual UART with only 230400 baud. Is this
> really the case or are those UARTs clocked at nonstandard (higher)
> frequencies so that this setting does result in a higher real baud
rate?
I can"t say for sure if that applies to your specific CF card, but
usually PCMCIA/CF uarts are just register-compatible emulations of a
standard uart, and the clockrate doesn"t matter at all. The actual data
rate can be very high.
Regards,
Erwin
-------------------------------------------
Andy Thomas,
Time Domain Systems
Tel: +44 (0)7866 556626
Fax: +44 (0)20 8372 2582
http://www.time-domain.co.uk
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
_______________________________________________
Bluez-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bluez-users