include/media/cec-pin.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * cec-pin.h - low-level CEC pin control
15  * struct cec_pin_ops - low-level CEC pin operations
16  * @read:	read the CEC pin. Returns > 0 if high, 0 if low, or an error
19  * @high:	stop driving the CEC pin. The pull-up will drive the pin
20  *		high, unless someone else is driving the pin low.
26  * @read_hpd:	optional. Read the HPD pin. Returns > 0 if high, 0 if low or
28  * @read_5v:	optional. Read the 5V pin. Returns > 0 if high, 0 if low or
30  * @received:	optional. High-level CEC message callback. Allows the driver
39 	void (*high)(struct cec_adapter *adap);  member
47 	/* High-level CEC message callback */
52  * cec_pin_changed() - update pin state from interrupt
55  * @value:	when true the pin is high, otherwise it is low
63  * cec_pin_allocate_adapter() - allocate a pin-based cec adapter
65  * @pin_ops:	low-level pin operations
66  * @priv:	will be stored in adap->priv and can be used by the adapter ops.