[nvda] Re: No braille support when using Alva Satellite via USB

On 28/10/2008 7:29 AM, Hermann wrote:

I then installed brltty with no errors, brlapi started, but the first
problem here: I don't read the startup message.
Hmm. Someone else is having problems with a Voyager. I am starting to think there may be problems with the Alva driver under Windows. 


Setting up NVDA's braille support results in not starting the display,
although there were no error messages.
You need to gt the log output from BRLTTY. Are you comfortable with the command line? 


May I install the libusb device driver instead of the filter? What's the
difference?
The libusb device driver provides libusb support only for the device. That is, you cannot have the manufacturer device drivers installed alongside the libusb device driver, as only one device driver can be used for a given device. The filter allows libusb to be used for the device even if there is another device driver installed as long as that device driver isn't being used at the time. In my experience, the filter can be a bit flakey, but it shouldn't make any real difference in most cases. 


The install procedure of the device driver sounds a bit
complicated
It is. You would need to create a .inf file for your device. Alternatively, you could use the .inf file supplied with libbraille, which *may* contain the information for your display. 

Jamie

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