[Bug 874181] Re: brltty daemon prevents creation of ttyUSB0 device link

Matthew Geier 874181 at bugs.launchpad.net
Tue Nov 8 19:44:43 UTC 2011


>> Let's deactivate BRLTTY default

>Please don't do that. It'd make way harder for blind people to use
Ubuntu.

 But at the moment it's causing a much larger population of people have
their USB serial devices stop working for no apparent reason. And many
devices are implemented by USB serial interfaces, some people are quite
likely to have - GPS devices for example.

 brltty should only claim the USB serial interfaces used by Braille
teletypes - although having been exposed briefly to this technology
(supporting a blind staff member), I can imagine many are just 'write
only' serial devices and thus undetectable. The modern ones probably use
the SAME usb to serial chips that other non Braille devices also use,
interfaced to the older 'write only' back end.

 As it stands, a much larger population are finding their GPS logger doesn't work, their 'ICE debugger' doesn't work, their home automation interface doesn't work, etc, etc.
 There are a truck load of USB devices out there that are implemented via a USB-serial bridge chip. 

 The only compromise I can see is to use brltty during the install
process so a blind user can install and throw up a question asking 'do
you need Braille tty support ?' and hope most sensible sighted people
will say no.

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https://bugs.launchpad.net/bugs/874181

Title:
  brltty daemon prevents creation of ttyUSB0 device link

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