[BRLTTY] Variable status cell displays and BrlAPI

Samuel Thibault samuel.thibault at ens-lyon.org
Thu Oct 26 01:54:40 EDT 2006


Hi,

Nicolas Pitre, le Wed 25 Oct 2006 22:30:26 -0400, a écrit :
> On Thu, 26 Oct 2006, Mario Lang wrote:
> > Hi.
> > As far as I can see (please correct me if I am wrong), there is no
> > way to write the status cell content via BrlAPI.

Well, there is, but it's not implemented yet.

> > The new HandyTech Modular Evolution series has no spacing between
> > status cells and main display, so it could potentially be used as a
> > full 88 (or 64) char display.  I think we should make sure this can
> > be utilized from API clients, since these are more likely to not
> > rely on even display width.  What can we do to make this possible?
> > Ideally, the brlapi_write call should allow a regionSize of 88.
> > However, this also means that displaySize should be able to report
> > 88.
> 
> This is a driver issue not a brlapi issue.  The driver should detect
> such display models and advertise the display as being a 88 cells to
> the core (possibly with a driver parameter if this is not desirable in
> all cases).

I agree with that (that would permit to have brltty itself take
advantage of the 88 cells).

BTW, writing on the status cells is not yet implemented because we
didn't yet take the time to gather information about those.  I guess
on some models there is sometimes some spacing between them and the
display.  Are these cells always on the left of the display, or
sometimes on the right?  May anything be displayed on them, or are there
sometimes some restrictions?

Samuel


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