[BRLTTY] BRLTTY disconnects a serial converter

[Lars Bjørndal]

Hi, list!

I need to use a serial converter to produce braille on an old embosser.
I'm using a Raspberry pi and a serial converter. If the converter is
connected at boot up; I get the following output from dmesg:

[   20.964405] usbcore: registered new interface driver ftdi_sio
[   20.964494] usbserial: USB Serial support registered for FTDI USB Serial Device
[   20.965023] ftdi_sio 1-1.1.3:1.0: FTDI USB Serial Device converter detected
[   20.965241] usb 1-1.1.3: Detected FT232BM
[   20.966606] usb 1-1.1.3: FTDI USB Serial Device converter now attached to ttyUSB0
...
[   23.393568] usb 1-1.1.3: usbfs: interface 0 claimed by ftdi_sio while 'brltty' sets config #1
[   23.400898] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[   23.401068] ftdi_sio 1-1.1.3:1.0: device disconnected

The braille display is connected through bluetooth. Is this something
that can be solved from BRLTTYs side?

If I connect the converter after boot up, it sometimes works, and
sometimes leads to a system crash. If it works, and the braille display
goes into sleep mode, the converter disconnects again when the display
wakes up.

Thanks, Lars