[Bluez-devel] usb to serial verification

[Bluez-devel] usb to serial verification

[Torez Smith]

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Hello,
is there a way to determine if your usb to serial profile is working?

I have a usb bluetooth dongle on one machine and a serial dongle
connected to comm1 on another machine. I am able to pair the two
dongles and have connected the usb dongle to  /dev/rfcomm0.

If expect that if I were to do ......   echo "hello world" > /dev/rfcomm0

I should see that on the second machine while cat'ting /dev/ttyS0.

No traffic comes across. The baud rate on the serial dongle is set
to 115200 which is the same baud rate used at /dev/ttyS0.

Any clues on how I might be able to echo into /dev/rfcomm0 and
be able to read the information through /dev/ttyS0?

thanks!

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Re: [Bluez-devel] usb to serial verification

[Marcel Holtmann]

Hi Torez,

> is there a way to determine if your usb to serial profile is working?

there is no USB to serial profile.

> I have a usb bluetooth dongle on one machine and a serial dongle
> connected to comm1 on another machine. I am able to pair the two
> dongles and have connected the usb dongle to /dev/rfcomm0.

What kind of serial dongle is this? Normal serial dongles must be
attached with hciattach.

Regards

Marcel




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Re: [Bluez-devel] usb to serial verification

[Marcel Holtmann]

Hi Torez,

> The serial dongle is a BT125S dongle. It's connected to a com port on
> a
> linux box. Theoretically, I should be able to cat /dev/ttyS0 on that
> linux box
> to read the data coming across from the usb dongle. 

this was not my question. Maybe I should be more specific. Is this
serial dongle a simply host adapter or a full "cable replacement"
product?

> Do I still need to hciattach the serial dongle on the linux box? 

If it is a host adapter then you have to attach to your Bluetooth stack
and you must use RFCOMM on both sides.

Regards

Marcel




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