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    SubjectRe: best way to handle LEDs
    Hi!

    > > Except the led code that is being proposed CAN sit on top of a generic
    > > GPIO layer.
    >
    > I also have issues with a generic GPIO layer. As I mentioned in the
    > past, there's serious locking issues with any generic abstraction of
    > GPIOs.
    >
    > 1. You want to be able to change GPIO state from interrupts. This
    > implies you can not sleep in GPIO state changing functions.
    >
    > 2. Some GPIOs are implemented on I2C devices. This means that to
    > change state, you must sleep.

    Can't you just busywait? Yes, it is ugly in general, but perhaps it
    is better than alternatives...


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