diff options
Diffstat (limited to 'src/include/gpiolib.h')
| -rw-r--r-- | src/include/gpiolib.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/include/gpiolib.h b/src/include/gpiolib.h index 850a661559..436f26ac04 100644 --- a/src/include/gpiolib.h +++ b/src/include/gpiolib.h @@ -31,6 +31,10 @@ typedef unsigned gpio_t; * bit fields, each representing one GPIO value, or a number where each GPIO is * included multiplied by 3^gpio_num, resulting in a true tertiary value. * + * gpio[]: pin positions to read. little-endian (less significant value first). + * num_gpio: number of pins to read. + * tertiary: 1: pins are interpreted as a quad coded tertiary. + * 0: pins are interpreted as a set of two bit fields. */ int gpio_get_in_tristate_values(gpio_t gpio[], int num_gpio, int tertiary); |