[BRLTTY] link to screen source

[Dave Mielke]

[quoted lines by John Covici on 2017/09/03 at 18:30 -0400]

>I sent the log to Dave privately.  I am getting device or resource
>busy on the usb.

The Screen screen driver is successfully starting without incident, so no 
problem with shared memory segments.

The prhase "no path for address' isn't in the log, so it's still a mystery.

The device is using a CDC ACM chip for its USB to serial adapter. This is a 
standard serial protocol, so the Mac kernel undoubedly has a driver for it, and 
that driver has undoubedly, therefore, claimed the braille device. That's why 
it's "busy" and brltty can't claim it for itself. Linux does the same thing 
except that, on Linuxk we know how to tell the kernel to release it so that we 
can grab it. I've no idea how to do this on Mac OS X. Until we can do it, you 
may need to use Bluetooth.

-- 
Dave Mielke           | 2213 Fox Crescent | http://Mielke.cc/
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