Re: [Patch] new serial flow control

[Sébastien Hinderer]

Hi,

> > I haven't seen this style of flow control before. What uses it?
> 
> terminal visio-braille (TVB)
> A device for the sight impaired.

Just to give a litle bit more precise information: this braille terminal
has been designed more than 10 years ago by the Handialog socity which is
now part of the TechniBraille/United Vision group.
Modern VisioBra"lles (with Prom of version 4 or higher) support both a
standard serial port management, and this odd flow control which was
originally designed to be used under MS-DOS, and was appropriate for doing
polling.

The integration of Samuel's patch into the kernel would allow users of
teominals containing a PROM older than 4 to use brltty with their terminal,
which would be a very useful thing, because updating such a PROM has a very
high cost.

Sébastien.
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