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include/nuttx/lcd/tda19988.h: Trivial update to some comments.

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Gregory Nutt
2019-01-16 15:04:25 -06:00
parent bbd19602a6
commit 4e98eb7581
1 changed files with 10 additions and 1 deletions
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include/nuttx/lcd/tda19988.h
+10 -1
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@@ -133,7 +133,16 @@ struct tda19988_lower_s
struct tda19988_i2c_s cec; struct tda19988_i2c_s cec;
struct tda19988_i2c_s hdmi; struct tda19988_i2c_s hdmi;
/* Interrupt controls */ /* Interrupt controls
*
* The interrupt output (open-drain) is used as dual function pin
* selectable through I2C-bus. In calibration mode this pin is used as
* input for 10 ms +/- 1% calibration pulse. In operational mode this pin
* is used to warn the external microprocessor that a special event has
* occurred for HDMI or CEC
*
* REVISIT: The interrupt is not currently used by the upper half driver.
*/
CODE int (*attach)(FAR const struct tda19988_lower_s *lower, CODE int (*attach)(FAR const struct tda19988_lower_s *lower,
xcpt_t handler, FAR void *arg); xcpt_t handler, FAR void *arg);