Re: [Bluez-users] Once again: Socket CF card and Kernel 2.6

Mathias Adam
2005-03-06T19:37:24Z

Hi Marcel,

On 05.03.05 20:55:37, Marcel Holtmann wrote:
> I get these extra log messages with your patch and the Xircom card:
>
> ttyS2: autoconf (0x03e8, 0x00000000): iir=3 iir1=6 iir2=6 Xscale type=XScale
> ttyS2 at I/O 0x3e8 (irq = 20) is a XScale
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=9600 quot=12
> ***** Serial: baud=115200 quot=1
>
> Don't ask why the type is now Xscale. It seems it is Xscale for every
^^^ was it different without my patch?
Shouldn't be...
> serial port in my system and it is a normal P4 system.

What kernel version did you patch? What does dmesg show when calling
hciattach (should be some ***** Serial messages)?
Does the card work with a 2.4 kernel (e.g. 2.4.29)?

> > > For the Socket card the baud rate is 230400 and yes, this is to slow for
> > > the full bandwith of a piconet. However I never did any bandwith test
> > > with this card, but actually there are cards out there where the UART
> > > limits the total possible bandwidth.
> >
> > Huh - but at least it's still a lot faster than a GPRS connection so it's
> > okay for me...
>
> If you have another system with an USB Bluetooth dongle, you can simply
> check what's the max piconet bandwidth. Use a PAN connection or test it
> with the l2test or rctest program.

I didn't find l2test nor rctest but I tried some OBEX file transfers and
only got around 25-30 KiByte/s, the same with Windows so it seems the
card really is limited to 230400 baud...
Btw, do you know another cf card without external antenna?

Regards,
Mathias

--
There are only 10 types of people in this world:
those who understand binary, and those who don't.