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chipmisc: Add multi_pin capability

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Add the ability to alias multiple output pins from a single pin alias.
This makes it possible to support some cases where a single logical
output is driven by multiple output pins.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2017-12-18 20:22:53 -05:00
parent 3c5649219f
commit 1b07505973
2 changed files with 63 additions and 0 deletions
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13
config/example-extras.cfg
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@@ -169,6 +169,19 @@
# See the 'pwm_output' section for details on these parameters.
# Multiple pin outputs (one may define any number of sections with a
# "multi_pin" prefix). A multi_pin output creates an internal pin
# alias that can modify multiple output pins each time the alias pin
# is set. For example, one could define a "[multi_pin my_fan]" object
# containing two pins and then set "pin=multi_pin:my_fan" in the
# "[fan]" section - on each fan change both output pins would be
# updated. These aliases may not be used with stepper motor pins.
#[multi_pin my_multi_pin]
#pins:
# A comma separated list of pins associated with this alias. This
# parameter must be provided.
# Statically configured AD5206 digipots connected via SPI bus (one may
# define any number of sections with an "ad5206" prefix).
#[ad5206 my_digipot]