Jacob Schmude <speakup at braille.uwo.ca> wrote: >I don't think that's a limitation of the VCSA devices themselves, but >rather how they are used. These devices show the screen as it >currently is at any given time, although documentation for them is >rather sparse. But couldn't we, rather than querying the device, >monitor it instead for incoming text? I'll do some digging and see >what I can find out. Even if the VCSA devices have such a limitation, you could propose changes to overcome it, or write a relatively simple kernel module just to expose the necessary information and implement the screen reader itself in user space. >It just seems that to have speakup in the kernel even after removing >serial support would leave us with all of the problems with none of >the advantages remaining. As I understand the situation, keystrokes can be intercepted from user space as well now; support for this was integrated into BRLTTY relatively recently. If I were designing a screen reader for Linux, I wouldn't put it in the kernel unless there were really no workable alternative. If I had to touch the kernel, it would be by way of a minimal driver just to provide the necessary interfaces.
