diff options
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/cec-pin.h | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/include/media/cec-pin.h b/include/media/cec-pin.h index 88c8b016eb09..483bc4769fe9 100644 --- a/include/media/cec-pin.h +++ b/include/media/cec-pin.h @@ -13,7 +13,8 @@ /** * struct cec_pin_ops - low-level CEC pin operations - * @read: read the CEC pin. Return true if high, false if low. + * @read: read the CEC pin. Returns > 0 if high, 0 if low, or an error + * if negative. * @low: drive the CEC pin low. * @high: stop driving the CEC pin. The pull-up will drive the pin * high, unless someone else is driving the pin low. @@ -22,13 +23,10 @@ * @free: optional. Free any allocated resources. Called when the * adapter is deleted. * @status: optional, log status information. - * @read_hpd: read the HPD pin. Return true if high, false if low or - * an error if negative. If NULL or -ENOTTY is returned, - * then this is not supported. - * @read_5v: read the 5V pin. Return true if high, false if low or - * an error if negative. If NULL or -ENOTTY is returned, - * then this is not supported. - * + * @read_hpd: optional. Read the HPD pin. Returns > 0 if high, 0 if low or + * an error if negative. + * @read_5v: optional. Read the 5V pin. Returns > 0 if high, 0 if low or + * an error if negative. * @received: optional. High-level CEC message callback. Allows the driver * to process CEC messages. * @@ -36,7 +34,7 @@ * cec pin framework to manipulate the CEC pin. */ struct cec_pin_ops { - bool (*read)(struct cec_adapter *adap); + int (*read)(struct cec_adapter *adap); void (*low)(struct cec_adapter *adap); void (*high)(struct cec_adapter *adap); bool (*enable_irq)(struct cec_adapter *adap); |