Fix pull kwarg DigitalInOut.switch_to_input and add example use to docs.

tannewt · tannewt · commit df96823deed7 · 2017-01-16T10:35:46.000-08:00
Thanks to jerryn from the Adafruit Forum for finding the bug!
diff --git a/shared-bindings/nativeio/DigitalInOut.c b/shared-bindings/nativeio/DigitalInOut.c
@@ -136,9 +136,20 @@ MP_DEFINE_CONST_FUN_OBJ_KW(nativeio_digitalinout_switch_to_output_obj, 1, native
 
 //|   .. method:: switch_to_input(pull=None)
 //|
-//|       Switch to read in digital values.
+//|     Switch to read in digital values.
 //|
-//|       :param Pull pull: pull configuration for the input
+//|     :param Pull pull: pull configuration for the input
+//|
+//|     Example usage::
+//|
+//|       import nativeio
+//|       import board
+//|
+//|       with nativeio.DigitalInOut(board.SLIDE_SWITCH) as switch:
+//|         switch.switch_to_input(pull=nativeio.DigitalInOut.Pull.up)
+//|         # Or, after switch_to_input
+//|         switch.pull = nativeio.DigitalInOut.Pull.up
+//|         print(switch.value)
 //|
 typedef struct {
     mp_obj_base_t base;
@@ -149,7 +160,7 @@ extern const nativeio_digitalinout_pull_obj_t nativeio_digitalinout_pull_down_ob
 STATIC mp_obj_t nativeio_digitalinout_switch_to_input(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
    enum { ARG_pull };
    static const mp_arg_t allowed_args[] = {
-       { MP_QSTR_value,      MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = mp_const_none} },
+       { MP_QSTR_pull,      MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = mp_const_none} },
    };
    nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
