Jacek Radzikowski <[email protected]> wrote:
> [-- text/plain, encoding quoted-printable, charset: ISO-8859-1, 61 lines --]
> 
> Chris,
> 
> Out of frustration with having to toggle each bit separately, I wrote a
> library which addresses the problem of scattered I/O pins and allows to use
> up to 32 independent lines as one word. Due to design of the I/O in the
> processor it is not possible to change at the same time pins scattered over
> multiple banks but, at least from the application point of view, all
> allocated pins are visible as an n-bit word. The library uses mmap to
> access the pins, so even with the translation layer between the application
> and the hardware it still should be faster than using file I/O on /sys
> entries.
> The code is posted on github: https://github.com/piranha32/IOoo
> 
Thanks Jacek, that looks very useful, especially as you've done a
HD44780-compatible LCD displays device driver as that's what I'm using
it for at the moment.

-- 
Chris Green
ยท

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