diff options
| -rw-r--r-- | extmod/machine_i2c.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/extmod/machine_i2c.c b/extmod/machine_i2c.c index 55d3a5bed4..c0a51a6e7f 100644 --- a/extmod/machine_i2c.c +++ b/extmod/machine_i2c.c @@ -286,7 +286,22 @@ STATIC void machine_i2c_obj_init_helper(machine_i2c_obj_t *self, mp_uint_t n_arg } STATIC mp_obj_t machine_i2c_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) { - mp_arg_check_num(n_args, n_kw, 0, MP_OBJ_FUN_ARGS_MAX, true); + // check the id argument, if given + if (n_args > 0) { + if (args[0] != MP_OBJ_NEW_SMALL_INT(-1)) { + #if defined(MICROPY_PY_MACHINE_I2C_MAKE_NEW) + // dispatch to port-specific constructor + extern mp_obj_t MICROPY_PY_MACHINE_I2C_MAKE_NEW(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args); + return MICROPY_PY_MACHINE_I2C_MAKE_NEW(type, n_args, n_kw, args); + #else + mp_raise_ValueError("invalid I2C peripheral"); + #endif + } + --n_args; + ++args; + } + + // create new soft I2C object machine_i2c_obj_t *self = m_new_obj(machine_i2c_obj_t); self->base.type = &machine_i2c_type; mp_map_t kw_args; |