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SC 2.1.2 and braille displays/notetakers

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From: Michael Ausbun
Date: Sep 5, 2019 8:44AM

Greetings,
Yesterday, I was discussing Success criteria 2.1.2 no keyboard trap with a colleague and a question came up I did not know how to directly address. I am curious what folks think:
If a person is fully reliant on a braille notetaker device (like the braille note touch or the Polaris) or a braille display for all interactions with web content; and,
If a person is able to shift focus to a component with the braille display or notetaker and cannot shift focus away from said component; but,
If a person were using a keyboard they could shift focus to and from the component; but,
A person does not have access, or know how, to use a keyboard;
Does 2.1.2 still pass?
I have been curious for a while now how certain aspects of WCAG2.1 really benefit braille display users. Being blind and a braille reader, I enjoy my braille display-especially when reading code; however, since I don't really use my braille display for navigation (just reading), I never really thought about this aspect.
I appreciate the feedback
Respectfully,
Michael Ausbun