[BRLTTY] Problem connecting the braille display Brailliant BI 40

[Dominique Asselineau]

Mario Lang wrote on Wed, Nov 11, 2015 at 10:44:26AM +0100
> Dominique Asselineau <asseline at telecom-paristech.fr> writes:
> 
> > Mario Lang wrote on Tue, Nov 10, 2015 at 11:12:23PM +0100
> >> Dominique Asselineau <asseline at telecom-paristech.fr> writes:
> >> 
> >> > 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?
> >> 
> >> Is BRLTTY running?
> >
> > BRLTTY does not start automaticaly.  However it runs manually as
> > noticed Sherab
> 
> What do you mean "does not start automatically?"

Sorry, I believed that the driver starts when one branch the braille display
on USB port.

> How did you install the system?
> To repeat my question: Is there a BRLTTY process running?

Yes

> Could you please check with "ps auxw|grep brltty"?
> 
> > # brltty -b hw -d usb:
> 
> I thought you can only call /etc/init.d/brltty through sudo.
> I am confused.  It would be easier to help you, if your answers
> were a bit more coherent.
> 
> >> Did you try the latest development version?
> >
> > On my professional machine, I am not root.  I am sudoer to start, stop
> > /etc/init.d/brltty and I can also configure brltty.conf.
> >
> > In brltty.conf i forced
> > braille-driver hw
> > without success. 
> >
> >> I am not 100% positive that HumanWare already worked with the version of
> >> BRLTTY release with wheezy.
> >
> > On Wheezy, it is BRLTTY 4.4.
> 
> Again, I am not sure how lucky you can get with that version.
> It might work, but I remember a lot of troubles in the early time when I
> started to use my HumanWare.  I guess you will want to upgrade BRLTTY to
> a more recent version.

Finally, by forcing the setting braille-driver hw, it works but the
following message appears on the console

[ 105.703002]]] cdc_acm 3:1:1.0 This device cannot do calls on its own. 
It is not a modem.
  
Thanks.

Dominiuqe


> 
> >> Do you have a file /lib/brltty/libbrlttybhw.so?
> >
> > Yes.
> >
> > Thank you.
> >
> > Dominique
> 
> -- 
> CYa,
>   ???????????????
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