[BRLTTY] Problem connecting the braille display Brailliant BI 40

[Dominique Asselineau]

Hi,

When i connect a Brailliant BI 40 to a PC under Linux/Debian 7.9 (Wheezy) 
with BRLTTY 4.4, notihing appears on the braille display and the logs 
contain these lines 

| Nov 10 16:11:27 agra kernel: [6310986.335056] usb 1-2: new full-speed USB device number 67 using xhci_hcd
| Nov 10 16:11:27 agra kernel: [6310986.354084] usb 1-2: New USB device found, idVendor=1c71, idProduct=c005
| Nov 10 16:11:27 agra kernel: [6310986.354090] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
| Nov 10 16:11:27 agra kernel: [6310986.354094] usb 1-2: Product:  BRAILLE DEVICE
| Nov 10 16:11:27 agra kernel: [6310986.354097] usb 1-2: Manufacturer: FREESCALE SEMI
| Nov 10 16:11:27 agra kernel: [6310986.354099] usb 1-2: SerialNumber:  003515
| Nov 10 16:11:27 agra kernel: [6310986.354265] usb 1-2: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
| Nov 10 16:11:27 agra kernel: [6310986.354750] cdc_acm 1-2:1.0: This device cannot do calls on its own. It is not a modem.
| Nov 10 16:11:27 agra kernel: [6310986.354862] cdc_acm 1-2:1.0: ttyACM0: USB ACM device
| Nov 10 16:12:47 agra kernel: [6311066.177544] usb 1-2: USB disconnect, device number 67

What should I do on the braille display?

Thanks.

dominique 

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