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This driver bit-bangs a signal with interrupts disabled. The signal can last for up to half a second (IR_MAX_DURATION). A much better way of transmitting IR is using the pwm-ir-tx driver, which does not disable interrupts. Signed-off-by: Sean Young <sean@mess.org> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>