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Diffstat (limited to 'include/media/cec-pin.h')
-rw-r--r--include/media/cec-pin.h16
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);