[u-a-dev] [Bug 90172] FTDI (USB Serial) failure. Possibly HAL related

[blueCommand]

Public bug reported:

I have two USB -> RS232 adapters which I want to use in Linux.
The first one (unsure about brand) works perfectly fine, but the other one doesn't.

The device /dev/ttyS0 will be created and then removed with 5 second intervals.
Relative dmesg and lsusb output as follows:

[ 9842.132000] usb 1-2: new full speed USB device using uhci_hcd and address 78
[ 9842.316000] usb 1-2: configuration #1 chosen from 1 choice
[ 9842.316000] ftdi_sio 1-2:1.0: FTDI USB Serial Device converter detected
[ 9842.316000] drivers/usb/serial/ftdi_sio.c: Detected FT8U232AM
[ 9842.316000] usb 1-2: FTDI USB Serial Device converter now attached to ttyUSB0
---
[ 9845.496000] usb 1-2: usbfs: interface 0 claimed by ftdi_sio while 'brltty' sets config #1
[ 9845.496000] usb 1-2: usbfs: interface 0 claimed by ftdi_sio while 'brltty' sets config #1
[ 9845.500000] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[ 9845.500000] ftdi_sio 1-2:1.0: device disconnected

This will repeat indefinitly

Device:
Bus 001 Device 079: ID 0403:6001 Future Technology Devices International, Ltd 8-bit FIFO

This might be relative: https://launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/81915 but it's "Fixed".
Greetings

** Affects: brltty (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

-- 
FTDI (USB Serial) failure. Possibly HAL related
https://beta.launchpad.net/bugs/90172