[Tinyos-help] Tmote USB connection interface problem

[Miguel Ángel «MrNet»]

Hi again.

Thanks to the help of Michiel Konstapel (thanks Michiel, your advice has been very helpful),
I've located the problem with my connection (I was sending data, but I wasn't receiving anything).
You were completely right: the USB device was being attached and after a moment disconnected...

So, finally, it wasn't related at all with javacomm (Yesterday, I got installed RxTx and I'm getting the
same behavior). A query to the 'dmesg' command revealed that the USB scanning process recognizes
the Tmote device perfectly, but after it get some errors about the USB connection interface, and
it DISCONNECTS SILENTLY the device (!!!). I suppose that this explains that I get no response from
the mote, but the device it was correctly listed in the Ubuntu hardware device manager.

I'm using TinyOS 1.0.x @ Ubuntu Linux 'Gutsy Gibbon' (The application runs smoothly on Windows).

Here it's he complete 'dmesg' log about the connection of the device to the USB port:

[ 8095.351081] usb 1-2: new full speed USB device using uhci_hcd and address 2
[ 8095.549098] usb 1-2: configuration #1 chosen from 1 choice
[ 8095.552043] ftdi_sio 1-2:1.0: FTDI USB Serial Device converter detected
[ 8095.552070] /build/buildd/linux-source-2.6.22-2.6.22/drivers/usb/serial/ftdi_sio.c: Detected FT232BM
[ 8095.552195] usb 1-2: FTDI USB Serial Device converter now attached to ttyUSB0
[ 8098.813672] usb 1-2: usbfs: interface 0 claimed by ftdi_sio while 'brltty' sets config #1
[ 8098.813804] usb 1-2: usbfs: interface 0 claimed by ftdi_sio while 'brltty' sets config #1
[ 8098.817056] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[ 8098.817073] ftdi_sio 1-2:1.0: device disconnected
[ 8104.213491] usb 1-2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1
[ 8109.596994] usb 1-2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1
[ 8109.652552] usb 1-2: usbfs: process 4026 (brltty) did not claim interface 0 before use
[ 8114.980534] usb 1-2: usbfs: interface 0 claimed by usbfs while 'brltty' sets config #1
[ 8115.012124] usb 1-2: usbfs: process 4026 (brltty) did not claim interface 0 before use

¿Does anyone know some possible solution to this problem?

Thank you very much. :-)

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