On Tue, 9 Feb 2021 at 13:28, Thomas J Powderly <[email protected]> wrote:
> loadrt hal_pi_gpio pi_pins={,,,}{,,,}{,,,}
> each 'quad' consists of braces enclosed data
I think that the modparam handling struggles with embedded commas
inside a single element.
I would suggest:
loadrt hal_gpio config=12or0,1i,23i,...
ie, don't force the format too hard, but work on leading numbers
specify a header number, other code letters (in any order) modify the
behaviour.
Maybe R for reset high and r for reset low?
FWIW a parser like this exists in mux_generic.
https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/components/mux_generic.c#L105
(note how each successive digit multiples the current number
(initially 0) by 10, and adds the new value, so 1, 01, 001 all mean 1)
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912
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