On 31/08/2023 22:15, Chris Green via Python-list wrote:
> class Gpiopin:
>
> def __init__(self, pin):
> #
> #
> # scan through the GPIO chips to find the line/pin we want
> #
> for c in ['gpiochip0', 'gpiochip1', 'gpiochip2', 'gpiochip3']:
>
> chip = gpiod.Chip(c)
> for l in range(32):
> line = chip.get_line(l)
> if pin in line.name():
> print("Found: ", line.name())
> return
> else:
> raise ValueError("Can't find pin '" + pin + "'")
You don't store the line anywhere.
You need to use self.line
self.line = chip.get_line(l)
if pin...
> def print_name(self):
> print (self.line.name())
>
> def set(self):
> self.line.set_value(1)
>
> def clear(self):
> self.line.set_value(0)
As you do here.
--
Alan G
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