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Minor improvements/fixes to the TCA64xx driver.

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This commit is contained in:
Gregory Nutt
2016-08-01 06:48:05 -06:00
parent c0b83cb4b4
commit fb84e51d5b
3 changed files with 49 additions and 31 deletions
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include/nuttx/ioexpander/ioexpander.h
+12 -10
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@@ -66,17 +66,19 @@
/* Pin options */
#define IOEXPANDER_OPTION_INVERT 1 /* Set the "active" level for a pin */
# define IOEXPANDER_VAL_NORMAL 0 /* Normal, no inversion */
# define IOEXPANDER_VAL_INVERT 1 /* Inverted */
#define IOEXPANDER_OPTION_INVERT 1 /* Set the "active" level for a pin */
# define IOEXPANDER_VAL_NORMAL 0 /* Normal, no inversion */
# define IOEXPANDER_VAL_INVERT 1 /* Inverted */
#define IOEXPANDER_OPTION_INTCFG 2 /* Configure interrupt for a pin */
# define IOEXPANDER_VAL_LEVEL (1 << 0) /* xx1 Interrupt on level (vs. edge) */
# define IOEXPANDER_VAL_HIGH (1 << 2) /* 001 Interrupt on high level */
# define IOEXPANDER_VAL_LOW (3 << 2) /* 011 Interrupt on low level */
# define IOEXPANDER_VAL_RISING (2 << 2) /* 010 Interrupt on rising edge */
# define IOEXPANDER_VAL_FALLING (4 << 2) /* 100 Interrupt on falling edge */
# define IOEXPANDER_VAL_BOTH (6 << 2) /* 110 Interrupt on both edges */
#define IOEXPANDER_OPTION_INTCFG 2 /* Configure interrupt for a pin */
# define IOEXPANDER_VAL_LEVEL 1 /* xx1 Interrupt on level (vs. edge) */
# define IOEXPANDER_VAL_HIGH 1 /* 001 Interrupt on high level */
# define IOEXPANDER_VAL_LOW 3 /* 011 Interrupt on low level */
# define IOEXPANDER_VAL_RISING 2 /* 010 Interrupt on rising edge */
# define IOEXPANDER_VAL_FALLING 4 /* 100 Interrupt on falling edge */
# define IOEXPANDER_VAL_BOTH 6 /* 110 Interrupt on both edges */
#define PINSET_ALL (~((ioe_pinset_t)0))
/* Access macros ************************************************************/