[BRLTTY] BRLTTY with Alva BC640

[Dominique Asselineau]

Dave Mielke wrote on Wed, Sep 16, 2009 at 04:35:01PM -0400
> [quoted lines by Dominique Asselineau on 2009/09/16 at 22:09 +0200]
> 
> >I try to run an Alva BC640 with BRLTTY 4.0 on Debian Lenny, and BRLTTY
> >can't start it.  It seems that the Alva braille display is seen as a
> >USB stick.  
> 
> The Alva BC640 contains a USB stick. It actually contains two USB storage 
> devices. Don't worry about Linux detecting them. It's not seeing them instead 
> of the braille display, but, rather, it's seeing them because they're there.
> 
> Earlier versions of the Alva BC640 firmware and the Linux kernel didn't get 
> along very well. The problem has been fixed, though, so a firmware upgrade of 
> your Alva may resolve the problem. Which version of the firmware do you 
> currently have?

Firmware 2.2.0

Sincere thanks.

Dominique

> 
> >Here is the part of the /var/log/kern.log concerning this connection:
> >
> >Sep 16 20:27:54 erode kernel: usb 5-7: new high speed USB device using ehci_hcd and address 22
> >Sep 16 20:27:54 erode kernel: usb 5-7: configuration #1 chosen from 1 choice
> >Sep 16 20:27:54 erode kernel: hub 5-7:1.0: USB hub found
> >Sep 16 20:27:54 erode kernel: hub 5-7:1.0: 3 ports detected
> >Sep 16 20:27:54 erode kernel: usb 5-7.1: new full speed USB device using ehci_hcd and address 23
> >Sep 16 20:28:04 erode kernel: usb 5-7.1: unable to read config index 0 descriptor/start
> >Sep 16 20:28:04 erode kernel: usb 5-7.1: chopping to 0 config(s)
> >Sep 16 20:28:14 erode kernel: usb 5-7.1: string descriptor 0 read error: -110
> 
> Yes, that's exactly what the problem looks like when the older Alva firmware is 
> being used.
> 
> -- 
> Dave Mielke           | 2213 Fox Crescent | The Bible is the very Word of God.
> Phone: 1-613-726-0014 | Ottawa, Ontario   | 2011 May 21 is the Day of Judgement.
> EMail: dave at mielke.cc | Canada  K2A 1H7   | 2011 Oct 21 is the End of the World.
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